查询词典 a pair of

In some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needle-like piercing organs connected with the pharynx.

在某些分类中，被认为是独立的一门；与蜘蛛类动物相似的无脊椎动物，在显微镜下可见，生活于水中或潮湿苔藓中，有4对腿。

A pair of volunteers is shown a series of images and must type the same one-word description of an image within a time limit.

一对志愿者可以看到一系列的图像，他们必须在限定的时间内为图像输入一个词的描述。

I saw a woman at a party recently wearing a pair of crocodile slingback shoe-boots with a large mink-trimmed tongue, and I was so taken with them that I stood next to her for quite some time relishing their glamour by proxy.

在最近的一次派对上，我看到一个女人穿了一双鳄鱼皮露跟女靴，还有个很大的用貂皮装饰的舌片（鞋子上的舌片，不是这位女士的舌头），我十分为之吸引，所以在她旁边站了好一会，用品味他们的魅力来代替。

One pair of primers that amplified the gB gene of pseudorabies viruswas designed and synthesized.PCR technique detecting the DNA of PRV was established after selecting the best reaction conditions.This technique was applied to specifically amplify the 281 bp DNA fragment of the PRV strains including Fa,Fb,Bartha,BJ,GD,V2F4,S,S3,SR,Buk,Shope,Norden,Mink Ⅲ,HB,F8,F9 and F12 in cultured samples.The negative results were achieved from Vero cells,swine vesicular disease virus,hog cholera virus,Japanese encephalitis virus,porcine reproductive and respiratory syndrome virus,porcine parvovirus,foot and mouth disease virus F29 strain,O3I3 strain,T509 strain and O Ⅱ MF249 strain.The results of sequencing showed that the PCR method was of specificity.The sensitivity of PCR reached 15.8 pg of PRV Fa strain DNA.The tissue samples obtained during 1994 and 2000 were detected,and the results showed that the sensitivity of PCR was more sensitive than virus isolation and the Sandwich ELISA.The PCR was applied to detect 191 tissue samples from 31 pig farms obtained from Guangdong,Fujian,Hainan Provinces during 1999 and 2000,50 samples(26.2%)were positive and 22 pig farms(71%)were positive.

根据伪狂犬病病毒gB基因的序列，设计并合成了一对引物，以闽A株细胞培养毒为模板，筛选最佳反应条件，建立了检测PRV的PCR方法应用该方法对Fb、Bartha、BJ、GD、V2F4、S、S3、SR、Buk、Shope、Norden、MinkⅢ、HB、F8、F9、F12等毒株的细胞培养液进行基因扩增，均获得了分子量为 2 81bp的特异性目的DNA片段，而对Vero细胞与FMDV、SVDV、HCV、PRRSV、JEV、PPV等病毒进行检测，结果均为阴性，没有出现交叉反应对PRV毒株扩增的产物测序，结果序列与文献报道一致，证明PCR扩增产物和方法的特异性对 1994～ 2 0 0 0年期间送检的临床样品和保存的PRV毒种，用病毒分离、双抗体夹心ELISA和PCR等 3种方法进行检测，结果前 2种方法检测为阳性的，PCR检测均为阳性；PCR检测为阴性，前 2种方法检测也为阴性；可是，前 2种方法检测为阴性的，PCR却检测出部分阳性；经x2 检验，证明PCR检出率明显高于前 2种方法的检出率对PRV闽A株细胞毒提取物DNA进行检测，其最低检出量为 15 8pg 对 1999～ 2 0 0 0年期间广东、福建、海南等省的 31个大中型猪场送检的 191份病料进行检测。

He had been standing a long time in that position, for I saw a pair of ousels passing and repassing scarcely three feet from him, busy in building their nest, and regarding his proximity no more than that of a piece of timber.

他就是照那个样子站了很久，因为我看见有一对鸫离他还不到三尺，跳过来跳过去，忙着筑它们的巢，把就在附近的他当作不过是块木头而已。

When he answers it there stands a 22 year old knockout dressed in nothing but a pair of Reeboks and a sign hanging around her neck.

答案就在他22岁，身高只有拳头穿着一双Reeboks，挂在脖子上的标志。

Use a sharp knife or a pair of pruners to cut a branch off the tree.

用锋利的刀子或园艺大剪刀切断树枝。

A pair of periscopes is attached, off centre, to a wheel. A user's view is lowered to ground level; divided to see outwards, rather than forwards and rises and falls, as they push the device forwards.

这个装置上面装有一对潜望镜，中间有一个轮子；这样一来，当使用者用这个装置往前推动时，他们的视野就会被迫向外分离，并和地面一样低。

It's about the size of a toaster oven, with two wheels, a pair of wheel odometers to measure its movement, and a bump switch to sense when it hits something.

它和烤面包机差不多大小，有两个轮子、一对滚轮里程计，还有一个碰撞感应器，让它能在撞到东西时转向。

A spring day in a pond is a lively affair, especially for a pair of red-spotted newts with eyes only for each other during their courtship ritual

特别是对一个对赤点蝾眼睛只为对方在其求爱仪式

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。