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     Based on the NM/FI/FI/NM double spin filter junction (NM represents the nonmagnetic metal layer and FI the ferromagnetic insulator or semiconductor layer), a new type of double spin filter junction NM/FI/NI/FI/NM (NI represents the nonmagnetic insulator layer) is discussed.
     在NM/FI/FI/NM型双自旋过滤隧道结(此处NM为非磁金属层,FI为铁磁绝缘体或半导体层)的基础上,我们提出一种NM/FI/NI/FI/NM新型双自旋过滤隧道结(此处NI表示非磁绝缘体或半导体层).
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     The semiconductor surface coated withboron sources was irradiated by electron beam produced during glow discharge to form adoping layer with high impurity concentration (>10~(20)cm~(-3)) and super-shallow junction(<0.1 μm).
     它是用辉光放电电子束辐照涂敷杂质源的半导体表面,形成高浓度(≥10~(20)/cm~3)、浅结(≤0.1μm)掺杂层.
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     Hysteresis characteristics in the current-voltage (I~V) curves of MgB2 granular superconductor are reported and interpreted by the resistively shunted junction (RSJ) model in this paper.
     本文研究了MgB2颗粒超导体电流-电压(I~V)特性曲线上的回滞现象并用电阻分路结(RSJ)模型进行了初步解释.
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     From computing and theory analyzing the structure of the homotype junction (N + N,P + P),we got the height of the homotype junction barrier and the width of the space charge region,and analysed the doping density difference between both sides of the homotype junction. It excellently explained the abnormal I V characteristics result.
     同时理论计算得到了同型结 (N+ - N,P+ - P)的势垒高度和空间电荷区的宽度 ,由此得到了在同型结两侧浓度比不同时的差异 ,极好的解释了异常的 I- V测试结果。
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     Super junction (SJ) charge balance concept devices[1,2] are gaining popularity as they have much lower Rdson compared to regular MOSFETs.
     依照超结(SJ)电荷平衡概念所设计的器件,由于有着比普通MOSFET低得多的Rdson而得到普及。
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     FABRICATION OF HIGH T c YBa 2Cu 3O 7 JOSEPHSON EDGE JUNCTIONS USING A SHADOW MASK TECHNIQUE
     掩模法制备高T_cYBa_2Cu_3O_7 Josephson边缘结(英文)
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     Taking into account the magnetic scattering and rough interface scattering effects, within Bogoliubov de Gennes equations and Furusaki Tsukada formula for the Josephson current, we calculate the dc Josephson current in s wave superconductor / ferromagnetic insulator / s wave superconductor junctions.
     在s波超导体 /铁磁绝缘层 /s波超导体Josephson结 (S/FI/S)中 ,考虑结界面铁磁绝缘层的磁散射和粗糙散射情况下 ,运用Bogoliubov deGennes(BdG)方程和Furusaki Tsukada(FT)的电流公式计算准粒子的输运系数及S/FI/S结的直流Josephson电流与温度T ,结两侧的相位差之间的关系 .
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     Nursing Care of Colorectal Tumor Patients Undergoing ~(18)F-FDG PET Imaging
     结(直)肠肿瘤病人行~(18)F-FDG PET显像检查的护理
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     On the basis of NM/FI/FI/NM double spin filter tunnel junction this paper proposes a new type of double spin filter tunnel junction,NM/FI/NI/FI/NM,by inserting a NI layer between two FIs in the old one,NM/FI/FI/NM.
     在NM/FI/FI/NM型双自旋过滤隧道结(NM为非磁金属,FI和后面的NI分别为铁磁和非磁绝缘体或半导体)的基础上,提出一种NM/FI/NI/FI/NM新型双自旋过滤隧道结.
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     The length of the borders of the Day rhombus are respectively: porus trigeminus to GSPN-V3 junction16.2±0.8 mm, arcuate eminence to porus trigeminus 21.7±2.5 mm, GSPN-V3 junction to geniculate ganglion 7.2±1.3 mm, geniculate ganglion to arcuate eminence 12.5±2.1 mm.
     Day菱形区各边长度 :三叉神经孔至岩大神经与下颌神经交点(16.2± 0 .8)mm、弓状隆起至三叉神经孔 (2 1.7± 2 .5 )mm、岩大神经与下颌神经交点至膝状神经结 (7.2± 1.3 )mm、膝状神经结至弓状隆起 (12 .5± 2 .1)mm ;
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  相似匹配句对
     Chinese Knot
     中国
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     PHOTOCURRENT IN A DIFFUSED p-n JUNCTION
     扩散p-n的光电流
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     Tying the "Chinese Bond" Together
     同系“中国(英文)
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     CHINESE KNOTS:WINDING THE BEST WISHES WITH CORD
     千千中国(英文)
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  junction (
By comparing ECV results with those of secondary ion mass spectroscopy (SIMS), it is found that the dopant concentration profiles in heavily-doped p+ layer as well as junction depths measured by ECV are in good agreement with those measured by SIMS.
      
These toxins are usually broad-spectrum and act on the central nervous system or at the neuro-muscular junction.
      
Characteristics of the Surface-Intrinsic Josephson Junction
      
Thus, the characteristics of the surface junction consisting of the surface Cu-O double layers remarkably differ from those of the junctions deep in the stack, which will be referred to as ordinary IJJs.
      
Furthermore, by shunting the surface junction resistively, we are able to observe the AC Josephson effect at 3-mm waveband.
      
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In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50)...

In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50) for four applications at a fifteen-day intervalduring the early growth season of cotton from June 15 to July 30. The popula-tion of leafhopper, the degree of infestation, the number of green bolls andthe yield of lint cotton were statistically analyzed and discussed. Population observations showed that the three contact poisons greatlyreduced the leafhopper population on the first day after application. Butthey soon lost their effectiveness three days later, so that the population startedto rebuild up and was practically with no significant difference from that ofhe untreated plots at the end of the fifteen-day interval. While the Bordeaux mixture showed a maximum reduction of population on the third day afterapplication, and maintained its effectiveness for a considerable time; the pop-ulation was constantly checked to such an extent that no serious damage wouldoccur during the spray interval. The degree of infestation as indicated by the symptom of cyrtosis onleaves was 40.83, 47.21, 55.85, 57.66, 62.48, and 60.39 per cent in average for4-6-50 Bordeaux mixture, 2-4-50 Bordeaux mixture, yam bean seed powdersuspension, pyrethrum powder suspension and tobacco water extract and theuntreated check plots respectively. Moreover, the percentage of heavily in-fested plants for the treated and untreated plots in the fore-mentioned orderwas 5.61, 8.24, 21.88, 23.68, 28.88 and 25.27 respectively.It was evident thatin the long run the Bordeaux mixture was the most effective insecticide inreducing the degree of infestation. The number of bolls per plant was 15.27, 13.24, 10.17, 9.53, 8.75 and6.75 in average, and the yield of lint cotton was 19.50, 17.84, 11.69, 10.11and 6.24 catties per mou (1 catty=0.5 kilogram, 1 mou=0.164 acre) for thetwo types of Bordeaux mixture and three kinds of contact poisons and theuntreated check plots respectively. The yield of cotton was generally much lower in 1943 than in 1942 forthe same experimental field. This was apparently due to the poorer soilfertility and heavier leafhopper infestation in 1943. But the ratio of the yieldbetween the Bordeaux mixture treated plots and the check plots was quitedifferent in the two years, i.e. 55.62 to 31 catties per mou in 1942, and 19.50to 6.24 catties per mou in 1943. This revealed a fact that the Bordeauxmixture treatment will he applied more effectively and profitably where thecotton field is not fertile and when the leafhopper outbreak is severe. 4-6-50 Bordeaux mixture and 2-4-50 Bordeaux mixture were in all casesinsignificantly different in their effectiveness. Theiefore a 2-4-50 Bordeauxmixture would be a more economical and practical measure for the cottonleafhopper control.

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多液;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫口,减轻受害程度及增加产量诸功能,藉以证明波尔多液之特性。 (二)1000倍豆薯种子粉悬液、600倍除虫菊粉悬液、及100倍烟草水,三者不论在消减虫口,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多液与2—4—50式波尔多液,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬液、除虫菊粉悬液、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多液为优,惟至第三天,差异便不显著,三天以后,波尔多液之功效反日见优越。此显示波尔多液之持久特性。 (五)棉浮(鹿土)子之虫口发生愈多,则波尔多液之功效愈著。因其效力持久,所抑制之虫口可还较接触剂为低。 (六)波尔多液减轻棉叶之受害程度,因其药效持久,附属牢固,保护力强,故亦较三种接触剂为优。 (七)施用波尔多液后,铃数显然增加。其功效亦优于三种接触剂。 (八)施用波尔多液后,每亩皮棉产量亦显著增加。本年...

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多液;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫口,减轻受害程度及增加产量诸功能,藉以证明波尔多液之特性。 (二)1000倍豆薯种子粉悬液、600倍除虫菊粉悬液、及100倍烟草水,三者不论在消减虫口,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多液与2—4—50式波尔多液,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬液、除虫菊粉悬液、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多液为优,惟至第三天,差异便不显著,三天以后,波尔多液之功效反日见优越。此显示波尔多液之持久特性。 (五)棉浮(鹿土)子之虫口发生愈多,则波尔多液之功效愈著。因其效力持久,所抑制之虫口可还较接触剂为低。 (六)波尔多液减轻棉叶之受害程度,因其药效持久,附属牢固,保护力强,故亦较三种接触剂为优。 (七)施用波尔多液后,铃数显然增加。其功效亦优于三种接触剂。 (八)施用波尔多液后,每亩皮棉产量亦显著增加。本年果,施用4—6—50式波尔多液者,产量较对照区增多3.12倍,2—4—50式波尔多液区较对照区增产2.85倍

Single storied industrial buildings composed of steel trusses and reinforced-concrete columns are very common. As the upper joints are hinged, the stresses in the columns are not influenced by the elastic properties of the trusses; while the upper joints are rigid, methods of analysis are usually based on the assumption that the moment of inertia of a steel truss may be taken as equivalent to that of a beam. In this paper, the author making use of the principle of least work reviews the equations for calculating...

Single storied industrial buildings composed of steel trusses and reinforced-concrete columns are very common. As the upper joints are hinged, the stresses in the columns are not influenced by the elastic properties of the trusses; while the upper joints are rigid, methods of analysis are usually based on the assumption that the moment of inertia of a steel truss may be taken as equivalent to that of a beam. In this paper, the author making use of the principle of least work reviews the equations for calculating the angle-changes at the ends of a truss, and then illustrates their applications with two practical examples: one with flat roof and the other with gabled-roof. They are solved respectively by the method of slopedeflection for the cases of no-sidesway, sidesway-correction and sidesway included by solving the elastic equations of unit deformation. The results are compared with those obtained with usual assumptions.

單層廠房採用鋼架砼柱之混合結構,極為普遍,上端鉸結時柱之應力並不受桁架彈性常數之影響,上端剛結時之分析方法,對於鋼架之截面慣矩每予假定,並代之以假想變梁,本文作者用最小功能定律以求計算桁架兩端角變常數之公式;再取二實例:一平頂屋架,一脊式屋架,用角變位移法分就無側欹、侧欹校正及單位變位彈性方程解三步驟解出共結果,與一般假定方法所得相互比較。

From the Chinese drug, Chin-kuo-lan, there have been isolated a new crystalline alkaloid and a neutral principle. The new alkaloid, which is provisionally named calystigine, crystallized from a mixture of acetone and ether in brownish prisms, with a m.p. of 203°. It has a molecular formula of C_(25)H_(23)O_6N, according to analyses of its crystalline salts, which are (1) picrate, C_(25)H_(23)O_6N·C_6H_3N_3O_7, brownish needles, m.p. 220°; (2) nitrate, C_(25)H_(23)O_6N·HNO_3, yellow needles, m.p. 233-234°; (3)hydrochloride,...

From the Chinese drug, Chin-kuo-lan, there have been isolated a new crystalline alkaloid and a neutral principle. The new alkaloid, which is provisionally named calystigine, crystallized from a mixture of acetone and ether in brownish prisms, with a m.p. of 203°. It has a molecular formula of C_(25)H_(23)O_6N, according to analyses of its crystalline salts, which are (1) picrate, C_(25)H_(23)O_6N·C_6H_3N_3O_7, brownish needles, m.p. 220°; (2) nitrate, C_(25)H_(23)O_6N·HNO_3, yellow needles, m.p. 233-234°; (3)hydrochloride, prisms, m.p. 230°; (4) hydrobromide, yellow needles, m.p. 232°; (5) perchlorate, C_(25)H_(23)O_6N·HClO_4, yellow needles, m.p. 268°; (6) methyliodide, C_(25)H_(23)O_6N·CH_3I, bright reddish needles, m.p. 238°. The neutral principle crystallized from a mixture of chloroform and ethanol in fine soft needles, having a molecular formula of C_(14)H_(16)O_4, m.p. of 191°, and a specific rotation of +32° in chloroform. It does not contain methoxyt and carbonyl groups, but reacts with bromine in acetic-acid solution to form a monobromide C_(14)H_(15)O_4Br, m.p. 214°.

從中藥金果欖(Calystigia hydraceae)中分得新植物鹼及中性物質各一種。新植物鹼暫時命名為金果欖鹼(calystigine),其分子式為C_(25)H_(23)O_(6)N,熔點202-203°,含量0.07%。此新植物鹼是一種叔胺鹼,極易與碘甲烷生成黄色結形的甲基季銨鹽,熔點238°。現已製得下列各種結晶鹽質:硝酸鹽,熔點233-234°;鹽酸鹽,熔點230°;氫溴酸鹽,熔點232°;高氯酸鹽,熔點268°;苦味酸鹽,熔點202°。 從金果欖中分得的中性物質,為白色針狀晶體,其分子式為C_(14)H_(16)O_4,熔點191°,[α]_D~(15)=+32°。產量約為0.92%。此中性物質對於醋酸酐和苯肼均無反應,但與溴液在醋酸中反應稜,生成一溴化物,C_(14)H_(15)O_(4)Br,熔點214°。

 
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