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By adopting the center arm six-bar steering mechanism and using the analytical method to synthesize the four-bar mech...

采用中心臂六杆转向机构，由解析法综合出符合要求的四杆机构，再将其绕中间位置镜像，并确定适当调整各杆的位置，使其在给定输入转角范围内，输出转角值尽可能接近阿克曼原理计算的输出值，使车辆获得良好的转向性能。

The mousetrap must contain a solid base to attach the four other parts to, a hammer that clamps down on the mouse, a spring which gives the hammer the necessary power, a holding bar which holds the now energized hammer in position, and a catch to which the holding bar is secured, holding the hammer in coiled tension.

一个捕鼠器必须有一个坚固的底部，用来安装其余四个零件，包括一个击打老鼠的锤子，一个给锤子足够力度的弹簧，一支用来承托上了弹簧的锤子的竿，和一个用来稳定这支竿的把手，使得锤子稳定在弹簧的拉力下。

This paper presents the present development of rape combine home and abroad and the running principle of typical threshing and separating system. And comparative experimental investigations are done between different threshing and separating systems, such as rasp-bar-plate-tooth drum with grid concave, axial-flow -short-rasp-bar drum with grid concave and spike-tooth drum with grid concave.

本文详细介绍了国内、外油菜联合收割机研究现状及典型的物料脱粒分离系统的工作原理，对油菜联合收割机不同的脱粒分离部件组合的脱粒分离系统——纹杆—板齿-栅格凹板、短纹杆—栅格凹板、钉齿—栅格凹板脱粒分离系统进行了对比试验与研究。

Indoor facilities will include: 140-seat main restaurant and cabaret stage, a huge main bar (perhaps the largest in Bulgaria), a sports bar with projection TV, snooker, pool, table football, table tennis, a Chinese restaurant, Indian restaurant, fast food cafeteria, pizzeria, gymnasium, sauna, massage parlour, clinic, chemist, sports shop and mini market.

室内设施包括：140个座位的主餐厅及夜总会舞台，一个巨大主杆体育酒吧与投影电视，桌球，撞球，桌上足球，乒乓球，中餐馆、印度餐馆、速食餐厅，比萨饼店、健身房、桑拿、按摩中心、诊所、化验、体育市场、小商店。

The kinematic analysis of the planar four-bar linkage and dimensional six-bar linkage can be done by building up the structural equations.

平面四杆机构和空间六杆机构的运动学分析可以通过建立闭链的结构方程来实现。

The transmission mechanism is a plane six-bar mechanism that is made up of two plane four-bar mechanism. Its natural frequencies and mode shapes are obtained by overlapping and synthesizing the mode of each component.

主传动机构是由2个平面四杆机构串联而成的平面六杆机构，通过对各构件的模态进行模态叠加和模态综合，得到传动机构的固有频率和振型。

Based on the model established for circuit analysis of the Stephenson six-bar chains,this paper presents a method of detecting the existence of a crank in Stephenson Ⅱ six-bar linkage.

著名的Grashof准则建立了平面四杆机构的曲柄存在条件，六杆机构虽然可以提

Continuation--Optimization method is proposed for approximate synthesis of linkages The synthesis of planar four-bar and six-bar linkages are studied using this method and several solutions are obtained. Thus, selection of the optimum solution for approximate synthesis of linkages is realized.

提出了机构近似综合的连续---优化法，并应用该方法研究了平面铰链四杆及六杆机构的函数综合，得到了多组机构尺寸方案，实现了机构近似综合的多方案优选。

The conditions for the existence of crank for Watt's mechanism, a basic type of one-degree-of-freedom planar six-bar mechanism,are investigated with the triangular dividing method and the method of instantaneous fixing of the driving bar.

本文采用平面杆机构的三角形划分法及主动杆瞬时凝结法探讨了单自由度平面六杆机构的一种基本型式——Watt型机构的曲柄存在条件；并用取极限的方法得到了其诱导机构的曲柄存在条件。

The Examination of the Sine Bar for the Petroleum Thread Gage;2. The sine bar is a practical precision measuring implement which can measure indirectly or a machining tool for the precision angle by the sine principle.

正弦规是利用正弦函数原理对精密角度进行间接测量或加工的一种常用的精密量具或工具，常用于测量内、外锥体的锥角及外锥体的大小端直径，也用于测量角度块的角度、孔中心线与平面之间的夹角。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。