三环的

The paper applies the proposed methodology to derive the time-varying OD demands for the Western 3rd Ring-Road corridor network in Beijing, which is shown to be accurate and practical.

最后以北京西三环交通走廊为研究对象，开展了动态OD需求估计实例分析工作，从而验证模型的准确性和实用性。

The companys main products are: valve type - automatic gate backwater valve, dual check valve, rubber gate valve, butterfly valve, such as three-ring seal products; category --- atmospheric-fired boilers, fuel, Gas-fired boilers and other products.

公司的主导产品有：阀类－－回水自动启闭阀、双路止回阀、橡胶闸板闸阀、三环密封蝶阀等系列产品；锅炉类---常压燃煤、燃油、燃气等锅炉系列产品。

The control structure selects the compound adjustment method which by the electric current, the rotational speed and the position three links is composed, electric current link uses the PID control algorithm, but the rotational speed and the snap ring use the fuzzy - PID intelligence control algorithm.

控制结构采用由电流、转速和位置三环组成的复合调节方式，其中电流环采用PID控制算法，而转速和位置环采用模糊-PID智能控制算法。

The OnTrak TesTcard 9 provides a qualitative screen for the presence of amphetamines, barbiturates, benzodiazepines, cocaine, methamphetamines, morphine, phencyclidine, tetrahydrocannabinol, and tricyclic antidepressants in urine.

OnTrak TesTcard 9能够定性筛查下述尿液中的药物：安非他明、巴比妥酸盐、苯二氮、可卡因、脱氧麻黄碱、吗啡、苯环己哌啶、四氢大麻酚、三环抗抑郁药。

The top of the tent pops up, three rings pop out, and the performers take their places.

该帐篷顶上弹出，三环弹出，并以他们的表演场所。

These designing parameters include stiffness of epicyclical bearings, synthetic meshing stiffness of gears, stiffness of supporting bearing of out put shaft, mass of inner rack, meshing angle of gears, distance between inputting shaft and supporting shaft and input speed etc..

这些设计参数包括：行星轴承刚度、齿轮综合啮合刚度、输出轴支承轴承刚度、内齿板质量、齿轮啮合角、输入轴和支承轴间距及输入转速等，根据这些分析，可以提出改善三环传动动态性能的可能途径。

This thesis sets up a new method to synthesize stereoselectively ?ra玸--2,5-disubstituted tetrahydrofurans by introducing two alkyl groups in 3-C and 5-C of lactol, flash decomposition and hydrogenation.

本文独创新的合成方法：以-乳醇，即-4，10-二氧杂三环[5.2.1.0~(2，6)]-癸-8-烯-3-醇为原料，在其3-位和5-位先反向引入两个取代基，再经过热分解和催化加氢反应，高立体选择性地合成反式-2，5-二取代四氢呋喃。

The key problem is to synthesize high stereoselectively trans- 2,5- disubstituted tetrahydrofurans. This thesis sets up a new method to synthesize stereoselectively ?ra玸--2,5-disubstituted tetrahydrofurans by introducing two alkyl groups in 3-C and 5-C of lactol, flash decomposition and hydrogenation.

本文独创新的合成方法：以-乳醇，即-4，10-二氧杂三环[5.2.1.0~(2，6)]-癸-8-烯-3-醇为原料，在其3-位和5-位先反向引入两个取代基，再经过热分解和催化加氢反应，高立体选择性地合成反式-2，5-二取代四氢呋喃。

Text from the Landscape Park east to the East Century City, OCT,柏阳Garden, Vanke green homes, etc., are all located in the greenbelt projects, tricyclic, tetracyclic, pentacyclic the greenbelt to the region brought about by a piece of green.

文字景观公园东到世纪东方城，华侨城，柏阳花园，万科绿色家园，等等，都是设在绿地项目，三环，四环，五环绿地该地区所带来的一片绿色。

Text from the Landscape Park east to the East Century City, OCT,柏阳Garden, Vanke green homes, etc., are all located in the greenbelt projects, tricyclic, tetracyclic, pentacyclic the greenbelt to the region brought about by a piece of green.

文字景观公园东到世纪东方城，华侨城，柏阳花园，万科绿色家园，等等，都是设在绿地项目，三环，四环，五环绿化该地区所带来的一片绿色。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！