环

Chain Ring – The chain ring is the rings with teeth that help to secure the crank to the chain.

链环-环的链环，是与牙齿上，以确保曲柄链。

Geometrical and physical parameters of components of the absorber in the virtual prototype follow from those technical data of a specific passenger car. Bench tests are conducted and a series of experimental results have been obtained by the MTS absorber test machine for the damping force-velocity which can be imposed in the virtual prototype for dynamic simulation. The piecewise, the hysteretic looped and the abnormal looped hysteretic force-velocity curves for the absorbers are, respectively, input into the prototype.

减振器阻尼力—速度特性是根据MTS减振器特性试验机试验结果，通过分段拟合，分别以分段线性、迟滞环和迟滞环畸变情况输入虚拟样机进行仿真分析，试验及仿真结果比较说明：减振器速度外特性采用迟滞环非线性，比采用双线性化模型更接近试验结果，能够更合理地解释试验现象；减振器阻尼力速度特性曲线出现畸变，如在复原行程初期迟滞特性曲线出现交叉现象，可以引发减振器系统动力特性的高频振动成分增加。

The standard workpiece of the ring compression test by Lee and Altan will be used in this report. The specimen will first annealed to eliminate the internal stress and then through different ways of machining to produce different roughness of surface and different direction of machining marks. The ring compression test with various lubricants and dry friction were carried out at room temperature. The experiment results were drawn on the diagram of friction factor developed by Lee and Altan to compare the influence of the roughness of surface to plastic forming with or without lubricants.

实验将依Lee and Altan压环试验所用之标准压环试片进行，实验试片先经退火处理消除内应力，再将试片以各种不同之加工方式制作成具有不同的表面粗糙度，与不同刀痕方向之摩擦面，再於常温环境下实施乾摩擦与添加不同润滑剂之压环试验，将实验结果所得之数据绘制於Lee and Altan之定剪摩擦系数图中，以比较其不同表面粗糙度对塑性成形之影响，同时也说明在各种不同表面粗糙度下添加各种润滑剂对成形之影响。

In order to raise the accuracy of the measurement of tangent of dielectric loss angle in XLPE cables,efforts were made to explore the effect of sample preparation and use of protective ring,i.e.the effect of different protective rings and different distance between the protective ring and the insulation shield on the accuracy of the tgδ measurement under a given measuring voltage.

为了提高交联聚乙烯绝缘电力电缆介质损耗角正切测量的准确性，对电缆试样制作保护环等问题进行了深入地探讨，即在一定的测量电压下，采用不同的保护环以及保护环与绝缘屏蔽之间不同的距离，对tgδ测量值的影响进行了探讨，并对测量工作提出了应注意的若干问题。

Based on the analysis and investigations of dual-band microstrip annular ring slot antenna, a novel miniaturized dual-band annular ring slot antenna for WLAN applications is presented. It utilizes two rectangle notches to overcome the problem of resonant effects caused by the distance between inner and outer ring slots.

基于对微带双圆环缝隙天线的研究与分析，通过连接型矩形槽设计克服了内、外环距对谐振效果的影响，提出了一种应用于无线局域网通信的小型双频圆环缝隙天线，并且可以实现圆极化。

Current products are: Mat O ring seal suction cups water polo Washers Washers piece lamp set of silicone rubber ear pads nail dust cover jacket sealing rings ring.

现生产的产品有：脚垫 O环水球密封圈吸盘华司垫圈矽胶片灯头套胶钉垫片耳塞防尘套护套套环止水环等。

The homocamptothecins with different substituted group in ring A and ring B can be obtained by the Friedlander condensation of the ring CDE with the acetals or 2-aminophenyl ketones.

以不同的缩醛与CDE环经Friedlander反应，可以得到A环上不同取代的高喜树碱类化合物，以缩酮或芳香酮反应，则可得到同时在A、B环取代的高喜树碱。

These hairline cracks sometimes develop over time in high-strength aluminum alloy and may reduce carabiner strength by more than 50%.

使用时检查钩环的开口附近是否有损坏，这些小破损有时候会出现在高强度的铝合金上，可能使钩环的强度降低50%，有裂缝或明显损坏的钩环应该丢弃。

Val-shape carabiners are the best choice for aid climbing, since the symmetrical shape holds loads at center of curve; runners wont's shift under load as they would in Ds.

型钩环是人工攀登的最佳选择，因为受力后绳环不会任意移动，在做钩环下降时最好选择这一型。

In1932, nineteen year old Arthur Chin and thirteen other young Chinese-Americans sailed for Shanghai, China.2 The hair styles braids and chignons were also shown to reflect the reality of Chin Dynasty.

如发型有螺纹式、浪式；发辫有三股、股，盘曲扭结，走向清楚，丝丝头发，清晰可见；发束有单环、环、环、环，表现出真实生活中束发络髻的各种式样。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。