中杆

Its invalidation of turning rupture leads to driving safety problems On the basis of research on the torsion bar spring in the suspension system , the paper finds the way to enhance the performance of the suspension system.

扭力杆的失效形式为扭转断裂，它关系到汽车在行驶中的安全。

Although these combined relative error γ.1%, in order to obtain more precise measurement results, it should be pay attention for the level of the torsion pendulum, the uprightness between the photoelectric doors and the block rod, the location of the being measured substance, the similarity of the shape and the quality between the standard object and the being measured object, human factors and so on.

利用扭摆法测量物体的转动惯量，受到待测物体摆动周期测量误差、装配位置偏移误差和轴线倾斜误差的影响，虽然这些相对误差总合γ。1%，为了使测量结果是加精确，实践中应该注意扭摆的水平、光电门与挡光杆的垂直、待测物重心的位置、人为误差的影响以及待测物与标准件形状、质量的相近性等。

On some occasions,two-step orthogonal toggle force-amplifying press based on pneumatic-mechanical compound transmission systems can be used instead of hydraulic transmission systems that cause environmental pollution.

而气压传动系统中的工作介质，是洁净的压缩空气，从这一点上来说，气压传动可以说是一种绿色化的传动技术。目前也有少量压力机采用气压传动，但是都是使用有杆活塞缸，这种气缸一般刚性比较差，且空间利用率低。

The hollow-axis motor drives the offset nozzle and rotates the arc on the tip of wire at high speed,so as to ensure enough penetration into the sidewalls in narrow gap welding .

在该系统中，焊丝穿过电机的空心轴后从导电嘴的偏心孔送出，电机带动导电杆和偏心导电嘴旋转，从而使焊丝端部的电弧以一定直径高速旋转，以保证窄间隙焊接接头具有足够的侧壁熔深。

The paper introduces application of new technologies such as soil nailed wall and pre-stressing anchor bar deep foundation pit support, high-strength concrete, elevator shaft climbing formwork, steel structure truss transition floor and tilt steel column in Shenzhen World Trade Center.

深圳世贸中心大厦在施工中运用了土钉墙和预应力锚杆深基坑支护、强混凝土、效钢筋、梯井筒爬模、结构等新技术，尤其六层钢结构桁架转换层、斜钢骨柱等施工难度较大，应用效果突出，取得了显著的经济效益和社会效益。

By analysis and comparison on the design of two beam-arch combination system bridges, this paper reflects the decisive influence of stiffness ratios of arch to beam in this kind of bridge design directly, and analyzes different design methods of these two bridge on arch rib tie bolt, and other key points for these two kinds of bindges.

本文通过对两座拱梁组合体系桥梁设计的比较和分析，直观地反映了此类桥梁设计中拱梁刚度比的决定性影响；同时分析了两桥在拱肋、系杆等细节的不同设计方法。

Combined with a three-span continuous semi-supported and tied steel truss arch-bridge, structures of different joints were discussed.

结合一座正在建设的三跨连续中承式系杆钢桁拱桥的&丁&字型接头，对比了不同结构形式接头的构造。

The application of genetic algorithm in optimization design of structures with discrete variables is presented with an example of optimization design for three-bar hyper static truss structures with discrete variables.

以三杆桁架结构优化设计演示了遗传算法在离散变量优化设计中的应用。

P72 Formation process of roddings: B type lineation is formed by the fold rolling of the thin-bedded vein quartzite or quartzite intercalated in the rocks.

Q 0 10cm 2。杆状构造形成过程：B型线理，由岩层中夹薄层脉石英或石英经褶皱的辗滚作用而形成。

In the case of a pole tent one should strongly consider a type that can accommodate a tent stove (a portable wood stove that can be used in a small location such as a tent or RV).

你可在为冬季状况设计的美国印第安人的圆锥形帐篷和有杆支撑的帐篷中任选其一。

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