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
   特征是 的翻译结果: 查询用时:0.543秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

特征是
相关语句
  feature is a
     Its special pathological feature is Aβ deposition outside the nervous cells and amyloid plaque formation, tau protein over phosphorated and neural fibers twist.
     其突出病理特征是脑神经细胞外β-淀粉样蛋白(Aβ)沉积与淀粉样斑块形成,tau蛋白过度磷酸化与神经原纤维缠结。
短句来源
     A higher recognition rate is obtained when used in lip im age series of digit pronunciation from1to10.Therefore,this feature is a vis ual language feature proper for lipreading,while the algorithm is valid in mode l training and feature extraction.
     对“1”至“10”数字发音的嘴唇图像序列进行识别,获得了较高的识别率。 因此,灰度轮廓权向量差分唇形特征是一种精炼、描述性强、适合于唇读识别的视觉语言特征,该算法能自动地完成模型的训练和视觉特征的提取,是一种有效的特征提取算法。
短句来源
     Peak feature is a kind of important feature for SAR ATR.
     峰值特征是进行SAR图像自动目标识别的重要特征。
短句来源
     Feature is a function element which have project meaning get from highly generalize and abstract of project object.
     特征是从工程对象中高度概括和抽象后得到的具有工程语义的功能要素。
短句来源
     Grid feature is a popular feature extraction scheme in image recognition, and usually higher performance could be obtained with the help of deformable template, especially in such difficult image recognition tasks as character recognition, digit recognition, logo recognition etc.
     网格特征是图像识别中一类重要特征,而变形模板对于复杂的图像识别问题如字符识别、数字识别、图标识别等表现出很好的性能,但变形模板很费时.
短句来源
更多       
  “特征是”译为未确定词的双语例句
     The essential character of laser-high photondegeneracy
     激光的基本特征是高光子简并度
短句来源
     HSM(High Speed Machining)is a revolutional technology development following NC technology in 20 century. Its basic prosperities are high cutting speed(5~10 times faster than normal cutting speed),fast feeding(40~180 m/min) and great acceleration(1~2 g).
     HSM(High Speed Machining)是20世纪数控技术之后的又一次革命性的技术发展,它的基本特征是切削速度高(为常规切削速度的5-10倍),进给速度快(40-180 m/min),加减速度大(1-2 g)。
短句来源
     The components with the highest ACE inhibitor activity measured by FAPGG methods, were separated further by SP-Sephadex C- 25. HPLC-MS analysis showed that the highest inhibiting activity comes from pepsin-trypsin digested components, which containing short peptides such as Arg-Tyr, Met-Trp, Gly-Val-Tyr or Gly-Asp-Phe with the common characteristics of phenyl ring-like structure which maybe the important structural charecteristics.
     各组中活性最高的组分进行HPLC-MS分析,其中活性最高的胃蛋白酶联合胰蛋白酶酶解活性组分主要为Arg-Tyr、Met-Trp、Gly-Val-Tyr或Gly-Asp-Phe,其共同特征是C端具有苯环样结构,提示:这种环结构可能是ACE抑制剂的重要结构特征。
短句来源
     Alzheimer's disease(AD) is characterized pathologically by the deposition of amyloid,the major component of which is a 40-42 residue peptide known as the β-amyloid peptide(Aβ).
     老年痴呆症的一个主要病理学特征是脑部出现淀粉样沉积,其主要成分是由40~42个氨基酸残基组成的淀粉样β多肽(Amyloidβ- peptide,简称Aβ).
短句来源
     The markers applied were Glu-B3 STS-PCR marker and Xgwm582marker which tightly linked with stripe rust resistance gene Yr9.The results indicated that an improved 1BL/1RS translocation has Glu-B3 and Yr9 without secalin,and has higher SDS-sedmentation value than common 1BL/1RS translocation.
     结果表明,在87份材料中鉴定出了一种新的改良1BL/1RS易位系,该类易位系的特征是:含有来自1RS的抗条锈病基因Yr9、不含黑麦碱、具有Glu-B3基因、比一般1BL/1RS易位系具有明显偏高的SDS-沉降值。
短句来源
更多       
  相似匹配句对
     (2)essential features;
     基本特征;
短句来源
     Characteristics of Fault
     错误的特征
短句来源
     This paper suggests that “being matter_of_fact” is a feature of The Art Of War by Sunzi.
     “求实”《孙子兵法》的特征
短句来源
     (5) time is feature.
     (五)时间特征
短句来源
查询“特征是”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。
  feature is a
Their main feature is a decrease in the device dimensions as a result of introducing two successively triggered low-power dynistor units into the control circuit and assembling several RSD structures in a common ceramic housing.
      
A particular 5"-UTR contextual feature is a misbalance in the content of complementary nucleotides, probably caused by negative influence of the stable secondary structure on the translation properties of the leader sequence.
      
Considering a slit liquid-metal electrode, whose special feature is a possible degeneration of the nonlinear three-wave interaction, we propose a model of the initial stage in the formation of a periodic system of cusps on its surface.
      
In this article I will show that this feature is a unique phenomenon that found its way into the LXX here via a juridical background, where it had already become a fixed common term.
      
The major feature is a postural headache of acute or subacute onset.
      
更多          


A.The Soils Since the goological formation of this mountainous area is quite uniform,a vertical distribution of soils is obviously observed. At the top of the mountain with an elevation of 8,500 feet,the podzolic soil is found. The process of podzolization is clearly shown by the translocation of clays,organic matter, and active aluminum from an upper to lower layer.The gray brown podzolic soil is distributed in areas ranging from 7,000 to 8,500 feet in elevation.It is developed under forest and has a...

A.The Soils Since the goological formation of this mountainous area is quite uniform,a vertical distribution of soils is obviously observed. At the top of the mountain with an elevation of 8,500 feet,the podzolic soil is found. The process of podzolization is clearly shown by the translocation of clays,organic matter, and active aluminum from an upper to lower layer.The gray brown podzolic soil is distributed in areas ranging from 7,000 to 8,500 feet in elevation.It is developed under forest and has a surface covering of leaf litter and a surface soil with high content of organic matter.In places at an elevatin from 3,900 to 7,000 feet the yellow podzolic soil is dominant.At an elevation below 3,000 foot the red podzolic soil and the sketetal soil are fonnd. The analytical data of the soils of this area may be summarized as follows: 1.pH values of the soils:In the whole area,since the parent rock (gneiss) is poor in basic constituents,soils are all acid in reaction.The pH of the different horizons of the soils ranges from 4.0 to 5.5.The A_0 and A_1 horizons are usually less acid than B horizon,the A and B horizons are much more acid than the parent rock.This shows the leaching process of the soils under such a humid atmosphere. 2.Organic Matter of the soils:The organic matter content of the soils in this area is greatlg influenced by the kind of the vegetation cover.At an elevation of 8,500 feet, the soil developed under forest has 38.92% of organic matter in the A_1,while that under grass has only 11.08% of organic matter in the corresponding horizon.However as the vegetation cover is constant,the dopth of the A_1 and its organic matter content are evidently affected by the elevation.At an elevation of 3,000 feet,the A_1 horizon of the red podzolic soil is only 1 cm.in depth,and it has 3.37% of organic matter.At an elevation of 8,500 feet,howerver,the A_1 horizon of the podzolic soil is 7 cm.in depth, and it has 11.08% of organic matter.In addition,deposition of organic matter in the B horizon is clearly found in the podzolic soil,but it has not been seen in soils found at lower elevation. 3.Active aluminum of the soils:All the soils in this area are high in active aluminum. They contain from 20 to 16 p.p.m.of active aluminum.The content of active aluminum in the different horizons of the same profile has a very close relationship with the pH values of the corresponding horizon.The less acid the reaction the smaller is the amount of acitve aluminum.The active aluminum of the soil is usually higher in amount than that of the parent rock from which the soil is derived. 4.Available calcium magnesium,and potassium of the soils:All the soils are general- ly low in available calcium,magnesium,and potassium.The comparatively high content of these elements in the A horizon is derived from the leaves of the vegetation which are grown on that soil. 5.Available phosphorus of the soils:All the soils of this area are low in available phosphorus. 6.Available nitrate:All soils in this area are very low in nitrate. B.The Vegetation 1.The plants growing on soils of this area are most calcifuge species which are acid- loving (Vaughan and Wishe,1937).As far as the chemical analysis of the soil is concer- ned,those species may be assumed as not only acid-loving,buy also active aluminum- loving (Hutchinson,1943). 2.The distribution of the calcifuge plants In this area is apparently affected by the local climate in terms of elevation.Some of them (temperate plants) are confined to high elevation,others(tropical plants) being limited to low elevation,Two groups of the plants may be given as follows.Many of them are of the same species as those found in southwestern China (Hou,1944). (a) Plants mainly ocurring in areas at elevations from 7,000 to 8,500 foot (temperate plants): Pteridophyta: Destaedtia Scabra (Wall.) Moore Diranopteris linearis Under. Hicrioptris glauea Under. Hymenophyllum crispatum Wall. Hymenophyllum exsertum Wall. Lidsaya cultrata Sw. Lycopodium clavatum L. Plagiogyria pyphylla (Kunze) Mett. Pteridium aquilinum Wightianum Trym Pteris aspericaulis Wall. Flowering Plants: Castanopsis tribuloides A.DC. Lindera pulcherrima Bth. Osbeckia crinata Bth. Rhododendron arboreum Sm. Rhododendron grande Wight Pieris formosana D.Don Vaccinium refersceda HK. Vaccinium serrasum Wight (b) Plants mainly ocurring in areas at elevation from 1,000 to 3,000 feet (tropical plants): Pteridophyta: Adiantum philippense L. Blechnum orientale L. Aglaoorpha coronaus Copel Lycopodium cernum L. Nephrolepsis cordifolia Presl Tectaria spp. Polypodium ucidum Roxb. Flowering plants: Oxyspora paniculate DC. Themeda arundinacea Ridl.

1945年10月中旬,作者留印三月另一周,曾作三次野外调查,计包括印缅边区、恒河平原及喜马拉雅山东南麓等三区,茲先将大吉岭区调查结果,草成此文。调查区域大吉岭位于喜马拉雅山东南麓,在我国西藏边境,全区是山地,海拔自1000到9000尺不等,主为酸性的片麻岩地层,在拔海6500尺地点,年平均气温为56.3℉.,年雨量为122寸。土壤灰壤——灰棕壤组合:在拔海8500尺左右的山顶,灰壤见于草地上,而灰棕壤则发育在森林之下。灰棕壤——灰化黄壤组合:在拔海7000—8000尺地带,森林下仍是灰棕壤,而草地上则为灰化黄壤。灰化黄壤——粗骨土组合:在拔海1000—3000尺地带,片麻岩生成灰化红壤,酸性砂岩生成砾质土。全区土壤特征可归纳如下: (1)土壤 pH 值:全区因土壤母质为酸性片麻岩,各类土壤剖面亦为酸性反应;pH 值约自4.0至5.5。A_1层之 pH 值恒较 B 层为大,而土壤剖面内之 A 层及 B 层均较母岩之酸度为高。 (2)土壤有机质:从土壤有机质分析结果观之,显示植物种类对于土壤有机质之含量高低,有密切的关系,在拔海8500尺之地带,发育于森林下的灰棕壤,表土含有机质38.92%,而同处草类和蕨类植物...

1945年10月中旬,作者留印三月另一周,曾作三次野外调查,计包括印缅边区、恒河平原及喜马拉雅山东南麓等三区,茲先将大吉岭区调查结果,草成此文。调查区域大吉岭位于喜马拉雅山东南麓,在我国西藏边境,全区是山地,海拔自1000到9000尺不等,主为酸性的片麻岩地层,在拔海6500尺地点,年平均气温为56.3℉.,年雨量为122寸。土壤灰壤——灰棕壤组合:在拔海8500尺左右的山顶,灰壤见于草地上,而灰棕壤则发育在森林之下。灰棕壤——灰化黄壤组合:在拔海7000—8000尺地带,森林下仍是灰棕壤,而草地上则为灰化黄壤。灰化黄壤——粗骨土组合:在拔海1000—3000尺地带,片麻岩生成灰化红壤,酸性砂岩生成砾质土。全区土壤特征可归纳如下: (1)土壤 pH 值:全区因土壤母质为酸性片麻岩,各类土壤剖面亦为酸性反应;pH 值约自4.0至5.5。A_1层之 pH 值恒较 B 层为大,而土壤剖面内之 A 层及 B 层均较母岩之酸度为高。 (2)土壤有机质:从土壤有机质分析结果观之,显示植物种类对于土壤有机质之含量高低,有密切的关系,在拔海8500尺之地带,发育于森林下的灰棕壤,表土含有机质38.92%,而同处草类和蕨类植物发育下的灰壤的表土,仅含有机质11.08%,但在相同的植物环境下,拔海高度或局部气候,也是支配土壤有机质含量的重要因素,例如在拔海3000尺地带,长有草类的灰化红壤,仅有极薄之有机质层,该层有机质含量为3.37%,而在拔海8500尺地带,长有草类的灰壤,则有较厚层有机质,其含量为11.08%。 (3)可溶性铝质:全区土壤含有高量可溶性铝,大约自20至160 p.p.m.,其含量与 pH 值高低相关,土壤 pH 值愈酸,可溶性铝含量就愈高。 (4)可溶性钙镁及钾质:全区土壤之可溶性钙,镁及钾等之含量均较低,但就同一土壤剖面而言,富于有机质的 A。或 A_1层的钙镁和钾质,常较 B 层为高,此点显示此等成份是来自植物遗体,亦即指示土壤中有机质与肥力之关系。 (5)全区土壤有效磷含量均甚低。 (6)全区土壤硝酸态氮之含量均极低,并有下淋现象。植物本文所论植物,仅以作者所采集而经各专家鉴定为限,其中以蕨类植物为主。本区的土壤都是酸性反应,所见的植物是以嫌钙性者为主,这些嫌钙性植物与拔海高度的关系很显著,兹将常见的植物种类,叙述如下: (一)主分布于拔海7000—8500尺地带的植物: 蕨类植物 Dennstaedtia scabra(Wall.)Moore Dicranopteris linearis Under. Hicriopteris glauca Under. Hymenophyllum crispatum Wall. Hymenophyllum exsertum Wall. Lindsaya cultrata Sw. Lycopodium clavatum L. Plagiogyria pycniphylla(Kunze)Mett. Pteridium aquilinum Wightianum Trym. Pteris aspericaulis Wall.种子植物 Castanopsis tribuloides A.DC. Lindera pulcherrima Bth. Osbeckia crinata Bth. Rhododendron arboreum Sm. Rhododendron grande Wight Pieris formosana D.Don Vaccinium referesceda HK. Vaccinium Serrasm Wight(二)主分布于1000—3000尺地带的植物: 蕨类植物Adiantum philippense L.Blechnum orientale L.Aglaomorpha coron(?)us copelLycopodium cernuum L.Nephrolepsis cordifolia PresslTectaria spp.Polypodium lucidum Roxb.种子植物Oxysoira paniculata DC.Themedra arundinacea Ridl.

1. This paper deals with the blood-sucking Ceratopogonidae collected fromSzechuan province.2. The female flies. of Lasiohelea taiwana, Culicoides sugimotonis and Culi-coides oxystoma have been studied morphologically in detail. Apart fromTaiwan Province, these species are recorded for the first time in China.3. The proportional length of the antennal segments, the shape of sonsorypore of the maxillary palpus and the distribution of wing spots are thespecific characters for the identification of these species.4....

1. This paper deals with the blood-sucking Ceratopogonidae collected fromSzechuan province.2. The female flies. of Lasiohelea taiwana, Culicoides sugimotonis and Culi-coides oxystoma have been studied morphologically in detail. Apart fromTaiwan Province, these species are recorded for the first time in China.3. The proportional length of the antennal segments, the shape of sonsorypore of the maxillary palpus and the distribution of wing spots are thespecific characters for the identification of these species.4. The blood-sucking habits of these species are quite different Lasioheleataiwana prefers human blood, Culicoides sugimotonis is a domestic fowlfeeder and sometimes also may feed on human blood while Culicoidesoxystoma is a preference for animal blood.

(一)本文所叙述三种蠛蠓,亦称墨蚊,采集地区包括四川省重庆之歌乐山、北碚之缙云山、澄江镇、宜宝及嘉定等地。 (三)三种蠛蠓之学名为Lasiohelea taiwana,Culicoides sugimotonis及Culicoides oxystoma,除台湾已有报告外,国内其他各地尚系首次记录。 (三)本文所记载的蠛蠓均系雌性成虫,其雄虫,蛹及幼虫之生态以及与传播疾病之可能性诸问题,尚有继续研究之必要。 (四)触角、触须、腿肢各节之比长,翅斑之分布及感觉毛开口孔之形状等为蠛蠓分类上之主要特征。 (五)三种蠛蠓之嗜血习性各不同:Lasiohelea taiwana之吸血对象为人类;Culicoides sugimotonis吸血对象为家禽有时亦吸人血;Culicoides oxystoma之吸血对象则为家畜。

Lycaena (Polyommatus) boetica L. is an important pest of green manureplants, being especially injurious to several species of Crotalaria at Liuchow,Kwangsi. This small butterfly hibernates in the egg stage on flower buds,immature pods and other parts of the hosts. Hatching takes place early inMarch. The first adult is seen in April. The larvae can be found from Marchtill December, causing damage to flowers and pods. Under insectary conditionsthis butterfly was found to have 7-8 generations annually. Each generationvaried...

Lycaena (Polyommatus) boetica L. is an important pest of green manureplants, being especially injurious to several species of Crotalaria at Liuchow,Kwangsi. This small butterfly hibernates in the egg stage on flower buds,immature pods and other parts of the hosts. Hatching takes place early inMarch. The first adult is seen in April. The larvae can be found from Marchtill December, causing damage to flowers and pods. Under insectary conditionsthis butterfly was found to have 7-8 generations annually. Each generationvaried from 20-176 days.

紫蓝小灰蝶在广西柳州沙塘是因种野百合属绿肥豆荚的主要害虫。此外该虫还为害木豆、刀豆和扁豆。根据文献该虫也为害荷兰豆和蚕豆。 小灰蝶和豆荚螟为害绿肥豆荚的特征和区别文中有详细的叙述。 小灰蝶以卵态在绿肥的花苞、嫩荚、茎和叶上越冬。幼虫为害豆类的时期自3月下旬直至12月上旬。在饲育室内一年发生7—8代。一世代需时20—176日。 成熟绿肥豆荚被害率自1.8—22.6%不等,本虫更为害花朵和嫩荚,使之凋落,不能结实。 绿肥作物终年开花结荚,不独是小灰蝶越冬的理想寄主,也助长其他重要豆作害虫如豆荚螟的繁殖。作者建议及时和合法刈割绿肥是解决本虫和若干其他豆作害虫的有效方法。

 
<< 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特征是的内容
在知识搜索中查有关特征是的内容
在数字搜索中查有关特征是的内容
在概念知识元中查有关特征是的内容
在学术趋势中查有关特征是的内容
 
 

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