两分

For the two isomeric compounds ofα-pinene,these three tested bark beetle species were sensitive to(1S)--α-pinene of low concentration(0.0001μL/mL) and R--α-pinene of high concentration(10μL/mL).

3对于α-蒎烯的两种同分异构体(1S)--α-pinene与R--α-pinene，测试的3种小蠹虫均对低浓度(0.0001μL/mL)的(1S)--α-pinene敏感，而对高浓度(10μL/mL)的R--α-pinene敏感。

These knowledge is the base of other course of engineering.

学时：180学时，分两学期完成，安排为：第1学期80学时，第2学期100学时。

With two men on base, Steve Yaeger hit a 3 run homer

垒上有两人，史蒂夫？叶歌击出三分全垒打

Yesterday 14:15 Xu, one engineering team used rigs in Liwan West Bay Road adjacent to the Montenegrin public transport stations, the construction of sidewalks, will be buried in the ground careless about 2cm in diameter gas pipeline damaged, resulting in gas leakage.

昨天下午2时15分许，一工程队用钻机在荔湾区西湾路黑山公交车站旁的人行道上施工时，不慎将埋藏在地下的直径约两寸的煤气管道钻破，造成煤气泄漏。

If you can apply the Marxist-Leninist viewpoint in elucidating one or two practical problems, you should be commended and credited with some achievement

如果你能应用马克思列宁主义的观点，说明一个两个实际问题，那就要受到称赞，就算有了几分成绩。

If you can apply the Marxist-Leninist viewpoint in elucidating one or two practical problems, you should be commend ed and credited with some achievement

如果你能应用马克思列宁主义的观点，说明一个两个实际问题，那就要受到称赞，就算有了几分成绩。

So one quarter into the season, when faced with the question who are the league's two best teams, you'd still be hard pressed to say anything but the Celtics and Lakers.

所以赛季过去四分之一，当面对谁是联盟最好的两支球队这个问题的时候，除了凯尔特人和湖人，你还是很难说出其他球队的名字。

Mirrors hang on test masses at each end of both arms, and there is a beam splitter is at the intersection of the two arms.

每条臂上均放置了一些透镜，在两臂交会的地方有一个分束器。

Took Chongqing Gong-he tunnel as an engineering example and studied the failure mechanism of surrounding rock and the correlation with bolt support system by using the methods of theoretical analysis, modeling test, numerical simulation and in situ test, some helpful conclusions were arrived as follows.Firstly, a new failure criterion for transversely isotropic rock mass was proposed with consideration of bedding plane orientation and major principal stress, and the corresponding algorithm, arrived through VC++6.0, can be easily embedded into the software FLAC3D for the geotechnical calculation.

论文在国家自然科学基金专项基金创新群体基金项目(No.50621403)以及国家自然科学基金重点项目"隧道与地下空间工程结构物的稳定性与可靠性(No.50334060)"的资助下，以共和隧道为示范工程，运用理论分析、物理模型实验、数值模拟和现场测试等手段，对共和隧道大埋深段层状岩体的围岩变形破坏机理、锚杆支护力学效应及围岩-支护结构的变形特征等内容进行了研究，其主要研究成果有：①在总结和探讨国内外学者提出的层状岩体经验型连续介质破坏准则基础上，结合层状岩体力学特性，考虑层面方向和最大主应力方向两个影响因素，提出了共和隧道层状岩体横观各向同性破坏准则；采用汇编语言VC++6.0实现了横观各向同性弹塑性本构关系的算法，并嵌入FLAC3D有限差分数值分析软件接口中实现数值运算。

The text analyses GPS observation model, the characteristic of kinds of errors fountain and the adopting measures in the observation, and processes the thorough research to Bernese GPS Software Ms-Windows Version 4.2. It makes the most stable satellites as the main error. The differential way adopts non-differential way and double differential way. The positioning precision of the single point is decimeter level. RMS is within 0.01~0.02; If the ambiguity right and without week skip, the observation datum of a EPOCH-BY-EPOCH can make the short base line（S0km）positioning precision reach centimeter level.

本文分析了GPS的观测模型、观测量中各种误差源的特点及应采取的措施，并对Bernese GPS Software Ms-Windows Version 4.2 软件进行了深入的研究，它是以最稳定的卫星作为主差，采用非差和双差两种差分方法，单点定位精度在分米级，RMS能在0.01~0.02以内；在模糊度已求解正确条件下，若没有周跳，一个历元的观测数据就可以使短基线（S0km）定位精度达到厘米级。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐