助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   average length 的翻译结果: 查询用时:0.206秒
图标索引 在分类学科中查询
所有学科
水产和渔业
基础医学
有机化工
医药卫生方针政策与法律法规研究
资源科学
轻工业手工业
蚕蜂与野生动物保护
金属学及金属工艺
更多类别查询

图标索引 历史查询
 

average length     
相关语句
  平均长度
     The titer of cDNA library is 115000000 pfu/mL, the average length of the cDNA library is 800 bp.
     cDNA文库滴度115000000pfu/mL,平均长度为800bp。
短句来源
     The average length and average diameter were 18.48±5.15 mm and 3.14±0.34 mm, respectively.
     支架平均长度18·48±5·15mm,支架平均直径3·14±0·34mm。
短句来源
     (3) the average length of labyrinthine segment was 3. 35 ± 0.68mm. ?
     ③迷路段平均长度3.35±0.68mm;
短句来源
     The average length of SA is 41 83±8 28mm.
     颏下动脉平均长度为 41 .83±8.2 8mm;
短句来源
     The average length of 11 linkage groups was 144.19cM,the average length between the markers was 18.88cM.
     11个连锁群的平均长度为144.19cM,标记间平均间距为18.88cM。
短句来源
更多       
  平均体长
     The average weight and average length of shrimp were 34.318g/ind and 14.755 cm/ind respectively in grow-out experiment in 2002 as compared to 25.793 g/ind and 13.033 cm/ind respectively for the control ponds.
     2 0 0 2年养成试验的对虾平均体重 34.318g/ind ,平均体长 14 .75 5cm/ind ,而对照池对虾平均体重 2 5 .793g/ind ,平均体长 13.0 33cm/ind。
短句来源
     After raising 160 days,the output was 517 5kg,the average length of body was 14 1cm,the profits was 36 690 yuan(18 35/m 2),food coefficient was 1 88
     投放体长 0 8cm仔虾 8万尾 ,40尾 /m2 ,养殖 16 0d ,至起捕时共产对虾 5 17 5kg,平均体长 14 1cm ,纯收益 36 6 90元 ,平均收益为 18 35元 /m2 ,饵料系数 1 88。
短句来源
     After 180days culture,547 mm in average length,1.79 mm daily length gain,(0.498%) in instantaneous growth rate(IGRL),were obtained.
     平均体长220 mm、平均体重25 g的西伯利亚鲟鱼经180 d培育后,平均体长达到547 mm,日均增长1.79 mm,瞬时增长率平均0.498%;
短句来源
     13.16 kg larva of Perinereis aibuhitensis Grube which average length was 2.34 cm had been bred in 80 m~2 concrete pool Orient Halobios Corporation in Yuhuan country from May 1st to June 25th in 2003.Different conditions of zoology odd-gene test were carried out on larva.
     报道了2003年5月1日~6月25日在玉环县东方海洋生物有限公司育苗厂80 m2的水泥池中育出平均体长2.34 cm的双齿围沙蚕(Perinereis aibuhitensisGrube)幼体13.16kg,并对双齿围沙蚕疣足幼虫进行了不同生态条件的单因子试验。
短句来源
     Feeding rate raised 5~15%,digestible absorptivity of protein raised more than 10%,per mu yield in- creased 10~20 kg,feed coefficient averaged out to 1.9,dropped 0.10~0.23,average length of prawn increased 0.6~1.0cm,per mu economic effect increased 285~538 yuan.
     摄食率提高5~15%,对蛋白质的消化吸收率提高10%以上,亩产增加10~20kg,饵料系数平均为1.9,下降0.10~0.23。 虾个体平均体长增加0.6~1.0cm,亩经济效益增加285~538元。
短句来源
更多       
  平均长
     Results:The average thickness of the cartilage of the corpus vertebral was 1.3±0.1 mm. The average length of left and right sagittal diameters and the thickness of the intervertebral discs were 36.7±3.1 mm and 11.6±1.9 mm respectively.
     结果:椎体软骨板平均厚1.3±0.1mm,椎间盘平均厚11.6±1.9mm,椎间盘左、右矢状径平均长36.7±3.1mm。
短句来源
     The average length of the affected limb is 0.2 cm(range 0-0.7 cm) longer than that of the healthy limb.
     随访8个月至3年,测量双下肢长度患肢比健肢平均长0.2 cm(范围0~0.7 cm)。
短句来源
     4.Length and calibre: Average length 103. 00 ± 37.73mm (X±SD). That of straight type is 83.25 ±17.80mm, that of slightly curved type is 100.63 ± 19.46mm, and that of remarkably curved type is 153.50 ± 62.35mm.
     4.脾动脉长度及管径:平均长103.00±37.73mm(直型平均长88.25±17.80mm,轻曲型100.63±19.46mm,显著曲型158.50±62.35mm)。
短句来源
     Results: The appearance rate of superior gastric artery was 48.78%,the average length in adult (20.86±0.81)mm, and the external diameter at the original point (1.18 ±0.62)mm, this artery distributed to the posterior wall of gastric fundus, the abdominal segment of esophagus and the cardia;
     结果:胃上动脉出现率为48.78%,成人平均长(20.86±0.81)mm,起始部平均外径(1.18±0.62)mm,该动脉分布于胃底后壁、贲门及食管腹段后壁;
短句来源
     76.6% of the veins drained into the mid-third portion of the splenicvein. The average length of the vein and the diameter at its terminal were 4.4cmand 1.7mm respectively.
     注入脾静脉中1/3段者较多(76.6%),该静脉平均长4.4cm,外径1.7mm。
短句来源
更多       
  平均寿命
     The average age of the onset in 457 cases was 54.31±11.05.The life span was 63.83±13.27.The average length of service,age of onset and average life span in driving workers were less than that in coal cutting and auxiliary workers.
     457例病人肺结核的发病年龄为(54.31±11.05)岁,寿命为(63.83±13.27)岁; 掘进工平均发病工龄、平均发病年龄及平均寿命均小于采煤工和混合辅助工。
短句来源
     Results The average length of townspeople in Chongqing in 2000 was 75.79 years old (male 73.63,female 77.94).
     结果2000年重庆市主城区城市居民平均寿命为75·79岁(男73·63岁,女77·94岁)。
短句来源
     Effect of Age Specific Mortality Rate on Average Length of Male and Female in Guizhou
     年龄别死亡率对贵州省男女性平均寿命的影响
短句来源
     As for the loss of average length by malignant tumors,lung cancer was the severest in men and women(male 1.21 years,female 0.63 years ).
     恶性肿瘤对男女居民平均寿命的耗损,均以肺癌最严重(男为1·21岁,女为0·63岁)。
短句来源
     The results indicate that a fall in mortality rate for 1-4 Year old chidren exerted most influence on extension of average length during 1981-1990.The effect of mortality rate of male infants was at the second place,but the effect of female infants was the last of all female groups.
     结果表明1981~1990年间1~4岁男、女性幼儿死亡率下降对平均寿命增量的贡献最大,男性婴儿死亡率的影响居第二位,女性婴儿死亡率的影响则最小。
短句来源
更多       

 

查询“average length”译词为其他词的双语例句

 

查询“average length”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  average length
The data of 1H NMR spectroscopy and the results of methylation showed that the average length of the unbranched regions of the polysaccharide molecule is six to seven glucose residues.
      
In the hypertrophied cardiomyocytes of both ventricles, an adaptive response of mitochondria was observed: their ultrastructure, size, and number changed, and the number and average length of IMJs increased.
      
The average length of the main root decreased with the increase of glycoside concentrations as a result of a growing amount of seedlings with low germination capacity and the absence of seedlings with high germination capacity.
      
The model predicts that the most of large particles are bonded into short chain aggregates whose average length consists of two or three particles at room temperature.
      
An average length of the Cr-O bond in octahedral surrounding of metal atoms is different in complexes I and II (1.985(4) and 2.003(3) ?, respectively), which is specified by different oxidation states of the metal atom.
      
更多          


The recent opportunity of examining the faecal material of the water-scorpion Leccotrephes japonensis revealed a flagellate which had not previously been described from this host. After fuller investigation I found that it is a species new to science and should be referred to the genus Retortamona; I have named it Retortamonas leccotrephae sp. nov.The specimens of Leccotrephes japonensis used for studies on the parasitic flagellate R. leccotrephae, were collected from ponds on the outskirts of Shanghai, China....

The recent opportunity of examining the faecal material of the water-scorpion Leccotrephes japonensis revealed a flagellate which had not previously been described from this host. After fuller investigation I found that it is a species new to science and should be referred to the genus Retortamona; I have named it Retortamonas leccotrephae sp. nov.The specimens of Leccotrephes japonensis used for studies on the parasitic flagellate R. leccotrephae, were collected from ponds on the outskirts of Shanghai, China. Apart from studying the living flagellates, at the same time stained specimens were prepared for the detailed study of various structures. These specimens were fixed either in Hollande's or in Schaudinn's fluid; stained in Heidenhain's haematoxylin, and destained in 2% aqueous phospho-tungstic acid. Moskowitz' (1950) modification of the Protargol impregnation method was also used for staining.In the living state, the flagellare has a slender, slipper-shaped trunk with an anterior dorsal flexure. The mean body size, exclusive of the posterior spike, is 12.8μ×4.8μ. The length of the slender posterior spike varies from 4.6μ to 15.8μ. There are two flagella of unequal length. The longer one extends forwards and lashes rapidly, causing the animal to rotate and to pursue a special course. The shorter flagellum is directed backwards and usually lies in the cytostome; it moves in an undulating manner.In fixed and stained preparations, the flagellates, not including the posterior spike, show a size-range of 6.2×2.2μto 15.6×5.4μ, with a mean of 11.9×3.4μ. The spike varied from 4.6μ to 13.6μ long, with an average length of 11.2μ. In general, a normal specimen of R. leccotrephae has a slender body; the anterior portion is narrower than the postcerior, and is markedly bent as shown in the living indivi.duals. The posterior portion of the body usually has a dorsal convexity, and the widest region is located near the two-thirds of the body-length from the anterior end.Near that edge of the nuclear membrane lying next to the cytostome, there are two minute, but separate, basal granules which give rise to the two flagella. The anterior flagellum is about as long as the body proper: much longer and more slender than the posterior flagellum, which usually lies within the cytostome, and commonly shows a series of two or three undulations; it often stains more deeply than the anterior flagellum.In hematoxylin preparations the nucleus is well stained, and clearly shows a layer of chromatin granules lying against the nuclear membrane, and a large central endosome, composed of a mass of granules.The cytostome is a large structure in this animal. It usually occupies about twothirds of the total length of the body proper. Along the margin of the cytostome there are two deeply staining fibres, the one on the right margin is longer than that on the left.Both the precystic forms and cysts of R. leccotrephae have been observed. The body of precystic individuals which are preparing to encyst, becomes smailer and rounds up; meanwhile, the chromatin of the nucleus condenses and forms a deeply staining endosome. The anterior flagellum is still disposed freely, and no cyst wall has as yet been formed. The border-line of the cytostome is distinct, but the two basal granules are visible only in favourable preparations. The mature cysts are nearly peanut-shaped, and are about twice as long as wide. In the stained specimens they are about 4.6μ long and 2.4μ wide. The cyst wail is of uniform thickness, and the nucleus is visible at one end. The other conspicuous structures within the cyst are the two flagella and the cytostomial fibres, which are arranged as they are in the trophozoite, except that the anterior flagellum is here directed posteriorly.DISCUSSION & SUMMARYIn its general body-form, R. leccotrephae closely resembles Mackinnon's R. agilis ('11) from crane-fly larvae, and also Corradett's R. gryllotalpae ('37) from the mole cricket, but it is especially like Geiman's R. caudacus ('32) from the aquatic larvae ef certain beetles.

红娘华蛐的身体结构,一般与Mackinnon所述的R.(Embadomonas) agilis和Corradetti所述的R.grillotalpae相似,特别近似Geiman所述的R.caudacus(图15,16)。但红娘华蛐有大约等於体长2/3的大胞口,和长於或等於体长的针状尾巴,而且无论在生活时或固定染色後,头部均向背後扭曲(此较图1和15)。这些特性,显然与过去文獻中所记载的种类不同,故(氵夬)定为蛐属——新种。

A study of the abnormalities and variations of the sacrum was made on 400 gross sacral specimens and 800 X-ray films.It consisted of segments,spina bifida occulta,flotting spinous process....etc. The composition of sacrum varied a great deal,the segments ranged from 4 to 9.In the series of gross specimens,with normal 5 segments:285 cases(71.2%); Co became incorporated in sacrum:62 cases(15.5%);sacralisation of L_5:22 cases (5.5%);lumbarisation of S_1:13 cases(3.3%);others:18 cases(4.5%);spina bifida occulta...

A study of the abnormalities and variations of the sacrum was made on 400 gross sacral specimens and 800 X-ray films.It consisted of segments,spina bifida occulta,flotting spinous process....etc. The composition of sacrum varied a great deal,the segments ranged from 4 to 9.In the series of gross specimens,with normal 5 segments:285 cases(71.2%); Co became incorporated in sacrum:62 cases(15.5%);sacralisation of L_5:22 cases (5.5%);lumbarisation of S_1:13 cases(3.3%);others:18 cases(4.5%);spina bifida occulta located in S_1 and S_2:115 cases(28.7%);sacral canal entirely opened:12 cases(3%).While in X-ray film series,with normal 5 segments;640 cases(80%); Co became incorporated in sacrum:70 cases(8.75%);sacralisation of L_5:67 cases (8.37%);lumbarisation of S_1:7 cases(0.87%);spina bifida occulta located in S_1 and S_2:153 cases(19.1%);sacral canal entirely opened:41 cases(5.1%);flot- ting spinous process:86 cases(10.7%). The size of sacral biatus was measured,the mean width of the base being 18.22mm,the average length between the apex and the base 26.7 mm,the A-P diameter of the canal at the level of apex 5.45mm.The apex was most common- ly located at the level of S_4 or S_5. Examination of articular surface of upper articular process showed that they inclined obliquely in most cases,but could also be coronal or sagittal.Both arti- cular surfaces were symmetrical in 65%,asymmetrical in 21.7%,markedly asym- metrical in 13.3%. The articular surface was extending from upper 2-3(1/2)segments,they were found symmetrical in 86.7%, asymmetrical in 13.3%. In the gross specimens,the curve of the sacrum was also studied,straight. superiorly and flexed inferiorly:17.2%,gently flexed:54%,markedly flexed:11.8%, flat and straight:11%,hyperextended superiorly and flexed inferiorly:6%.In the X-ray film series,“horizontal sacrum”was found in 4.5%. The spinous process of the sacrum remained rudimentary,leaving only the tubercle.Its number was studied. 2 cases with marked anomaly were reported.One girl aged 1,with rudi- mentary sacrum,only 2 segments,the coccyx wanting,L_2-L_5 sacralized.A boy aged 6,had V-shaped defect in the sacrum.Both cases presented remarkable clinical disturbances. The clinical significance relating the abnormalities and variations of the sacrum was briefly discussed.

1.本文就400例骶骨标本及800例有关X光像进行研究。 2.骶骨常见之畸形变异有骶骨节数之增减;隐性脊柱裂及浮棘等,骨胳标本之研究中发现具正常5节者285例,占71.2%,骶尾椎62例,占15.5%,腰椎骶化22例,占5.5%,骶椎腰化13例,占3.3%,其他18例,占4.5%,S_1及S_2有脊柱裂者115例,占28.7%,骶管全部开放者12例,占3%,X光像观察发现具正常5节者640例,占80%,骶尾椎70例,占8.75%,腰椎骶化67例,占8.37%,骶椎腰化7例,占0.87%,S_1及S_2有脊柱裂者153例,占19.1%,骶管全部开放者41例,占5.1%,具浮棘者86例,占10.7%。3.本文另就骶管裂孔的大小各径进行测量,其底之横径平均为18.22mm,底至尖之距离平均为26.7mm,尖部之前后径平均为5.45mm,尖部一股对第四五骶椎处。4.上关节突之关节面最常见者为斜位,但也有不少作冠状位及矢状位,两关节突对称者占65%,不对称者占21.7%,显明不对称者13.3%。5.耳状面之范围多位于上二三节间,两侧对称者占86.7%,不对称者占13.3%。6.骶骨之曲度有甚多变化,上直下屈者占17.2...

1.本文就400例骶骨标本及800例有关X光像进行研究。 2.骶骨常见之畸形变异有骶骨节数之增减;隐性脊柱裂及浮棘等,骨胳标本之研究中发现具正常5节者285例,占71.2%,骶尾椎62例,占15.5%,腰椎骶化22例,占5.5%,骶椎腰化13例,占3.3%,其他18例,占4.5%,S_1及S_2有脊柱裂者115例,占28.7%,骶管全部开放者12例,占3%,X光像观察发现具正常5节者640例,占80%,骶尾椎70例,占8.75%,腰椎骶化67例,占8.37%,骶椎腰化7例,占0.87%,S_1及S_2有脊柱裂者153例,占19.1%,骶管全部开放者41例,占5.1%,具浮棘者86例,占10.7%。3.本文另就骶管裂孔的大小各径进行测量,其底之横径平均为18.22mm,底至尖之距离平均为26.7mm,尖部之前后径平均为5.45mm,尖部一股对第四五骶椎处。4.上关节突之关节面最常见者为斜位,但也有不少作冠状位及矢状位,两关节突对称者占65%,不对称者占21.7%,显明不对称者13.3%。5.耳状面之范围多位于上二三节间,两侧对称者占86.7%,不对称者占13.3%。6.骶骨之曲度有甚多变化,上直下屈者占17.2%,均匀屈曲者54%,极度屈曲者11.8%,平直者11%,上伸下屈者6%,X光像具水平骶椎者占4.5%。7.骶骨之棘突显示退化,本文就棘突之数目作了分析。8.本文报告二例严重骶骨先天性畸形。9.本文对各种畸形变异之临床意义作了简要之说明。

The F_1 of Shorthorn×Mongolian cross adapts itself very well to the environmental conditions of the northern part of Hopei Province.They are strong-built, with low succeptibility to diseases. The F_1 has highly improved conformation over the Mongolian cattle, being more symmetrical, with refined head, increased body width; back and loins are straight, wide and long; ribs well-sprung, length of legs increased.They are more meaty than the Mongolian cattle.But their hind quarters are still not well developed...

The F_1 of Shorthorn×Mongolian cross adapts itself very well to the environmental conditions of the northern part of Hopei Province.They are strong-built, with low succeptibility to diseases. The F_1 has highly improved conformation over the Mongolian cattle, being more symmetrical, with refined head, increased body width; back and loins are straight, wide and long; ribs well-sprung, length of legs increased.They are more meaty than the Mongolian cattle.But their hind quarters are still not well developed and rather narrow, some of them with sloping and ridge-shaped hips. The udders of the F_1 cows are better developed, with thicker and more curved milk veins, and longer teats.The hair of the crossbred cattle is short and lustrous.The predominant coat color is red or roan, cattle of black, black and white, yellow, yellow and white colors are next numerous, while those of brown, white, steel grey, and wild cat are still less in number. The development and growth of F_1 attained a higher level.Average birth weight of bull calves is 25.13kg, and of heifer calves 23.14kg, they increased by 31.36% and 32.46% respectively than the Mongolian calves.Their weight at 6 months increased by 26.12% and 32.48% respectively, at 12 months by 65.85 and 90.10% respectively.Average weight of F_1 cows at 1st freshening is 399.04kg, 2nd freshening 405.80kg, 3rd freshening 436.00kg, an increase of 41.75%, 26.54% and 31.92% as compared with Mongolian cows at respective freshenings.F_1 bulls at 3 years of age weigh 577.5kg, at 4 years 750.0kg. The height at withers of mature bulls is 141.00cm on the average, body length 175.00cm, heart girth 215.0cm, increased by 17.50%, 17.69% and 20.14% respectively.The average height at withers of mature cows is 124.61cm, body length 146.17cm, heart girth 181.71cm, increased by 1198%, 10.40% and 10.03% respectively. Average length of lactation period of F_1 cows is 267.82 days, an increase of 108.24 days.Average production of milk is: 1st lactation 1,625.25kg, 2nd lactation 1,977.53kg, 3rd lactation 2,342.43kg, increased by 290.36%, 285.27% and 302.22% respectively as compared with Mongolian cows.Cows with milk production over 2,000kg at 1st lactation amounted to 30.80% of the total number of cows, the highest producer gave 3,337.2kg.Average fat content is 4.60%, they range from 3.93% to 5.5%.

短蒙一代杂种牛,对察北地区自然条件的适应性良好,生活力强,体格健壮,疾病较少。短蒙一代杂种牛在体型外貌方面比蒙古牛有了很大程度的改善,全身结构均称、头清秀、体躯宽度显著增加、斜尻有了改善、背腰平宽长、肋骨开张、四肢增高、肌肉组织亦较蒙古牛丰满充实。但后躯仍嫌狭小,有的牛仍显现耕尻和屋脊状尻。一代杂种母牛乳房增大、乳静脉变粗、有弯曲、乳头长度增加。被毛短、有光泽。毛色以红、红白色为数最多,黑、黑白,黄、黄白色次之,狸、褐、白、青等色较少。短蒙一代杂种牛的生长发育较快,公犊平均初生体重为95.13公斤,母犊为93.14公斤,比蒙古牛分别提高31.36%与39.46%,6个月龄体重提高39.48%与96.12%,12个月龄体重提高90.10%与65.85%。短蒙一代杂种母牛平均体重第一产399.04公斤,第二产405.80公斤,第三产436.00公斤,比蒙古牛分别提高41.75%、96.54%与31.92%。一代杂种公牛3岁体重为577.50公斤,4岁为750.0公斤。短蒙一代杂种牛各年龄体格较蒙古牛为大,成年公牛鬐甲高141.0厘米,斜体长 175.0厘米,胸围215.0厘米,较蒙古牛分别增加17.50%、17....

短蒙一代杂种牛,对察北地区自然条件的适应性良好,生活力强,体格健壮,疾病较少。短蒙一代杂种牛在体型外貌方面比蒙古牛有了很大程度的改善,全身结构均称、头清秀、体躯宽度显著增加、斜尻有了改善、背腰平宽长、肋骨开张、四肢增高、肌肉组织亦较蒙古牛丰满充实。但后躯仍嫌狭小,有的牛仍显现耕尻和屋脊状尻。一代杂种母牛乳房增大、乳静脉变粗、有弯曲、乳头长度增加。被毛短、有光泽。毛色以红、红白色为数最多,黑、黑白,黄、黄白色次之,狸、褐、白、青等色较少。短蒙一代杂种牛的生长发育较快,公犊平均初生体重为95.13公斤,母犊为93.14公斤,比蒙古牛分别提高31.36%与39.46%,6个月龄体重提高39.48%与96.12%,12个月龄体重提高90.10%与65.85%。短蒙一代杂种母牛平均体重第一产399.04公斤,第二产405.80公斤,第三产436.00公斤,比蒙古牛分别提高41.75%、96.54%与31.92%。一代杂种公牛3岁体重为577.50公斤,4岁为750.0公斤。短蒙一代杂种牛各年龄体格较蒙古牛为大,成年公牛鬐甲高141.0厘米,斜体长 175.0厘米,胸围215.0厘米,较蒙古牛分别增加17.50%、17.69%与20.04%;成年母牛鬐甲高124.61厘米,斜体长146.17厘米,胸围181.71厘米,此蒙古牛分别提高11.98%、10.40%与10.03%。短蒙一代杂种牛泌乳期平均为267.82天,此蒙古牛增长108.42天,泌乳300天以上者占39.03%,比蒙古牛增多5.18倍。平均泌乳量第一产为1,625.25公斤,第二产为1,977.53公斤,第三产以上为2,342.43公斤,此蒙古牛分别提高290.36%、285.27%与302.22%。第一产泌乳量在2,000公斤以上者有30.80%,最高达3,337.2公斤。平均乳脂率为4.60%(范围3.93—5.5%)。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关average length的内容
在知识搜索中查有关average length的内容
在数字搜索中查有关average length的内容
在概念知识元中查有关average length的内容
在学术趋势中查有关average length的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社