主杆

Result:The untonchment of a linit-rod and amain nail was found to be the major reason of the inter-locking nail installation failare in the clinical cases,as the main nail and the guide were disturbed by ontside forces .

结果：在本组病历中，外力干扰交锁髓内钉的主钉和瞄准器，及与冠状面垂直的限位杆与主钉未接触，成为交锁髓内钉锁钉安装困难或失败的主要原因。

The effects of drawbar length, articulation joint position on path following performance are investigated using parameter analysis method.

采用模型参数化分析方法，讨论了牵引杆长度、主车与拖车和拖车与拖车的铰接点位置对主车与拖车轨迹同辙性的影响。

This paper uses the ADAMS software to set up a dynamic model of tractor-trailer combination consisting of one tractor and five trailers with a total of 13DOF. The effects of drawbar length, articulation joint position on path following performance are investigated using parameter analysis method.

本文应用机械系统分析软件ADAMS建立了由一节牵引车和五节双轴转向拖车组成的汽车列车系统13个自由度的动力学模型，采用模型参数化分析方法，讨论了牵引杆长度、主车与拖车和拖车与拖车的铰接点位置对主车与拖车轨迹同辙性的影响。

Theory; the spatial meshing theory includes comparative motion, comparative differential and conjugative curved surface; and the application of meshing theory includes gear drive and worm drive. The spatial meshing theory is the main part of the course.

课程的重点讲解内容有曲线的参数方程、切线、法面、弧长、曲率、空间曲线的基本公式、挠率及平面曲线的基本公式等；曲面第一和第二基本公式，法曲率、主方向和主曲率、欧拉公式、短程挠率、欧拉公式和贝特朗公式推广、相对法曲率和相对短程挠率等；刚体的绝对和相对运动速度、相对微分和绝对微分、相对速度和相对微分、轨迹曲面的法曲率和短程挠率等；空间共轭曲面的啮合条件、诱导法曲率、两类界限点、等距共轭曲面、空间啮合的二次接触原理等；蜗杆传动的数学模型建立及啮合特性分析方法等。

Fox's mood arrived badly the utmost, lose reason eventually, go with ball lever angrily stroke fly, ball lever is touched moved advocate ball, the judgment sentences his drive, he lost a chance one round accordingly.

福克斯的情绪恶劣到了极点，终于失去理智，愤怒地用球杆去击打苍蝇，球杆碰动了主球，裁判判他击球，他因此失去了一轮机会。

Its basic structure from the main arm, the Deputy rocker, the main motor, spindle and compression devices, column, rocker base, motor and screw off and landing, handrails and so on.

其基本结构由主摇臂，副摇臂，主电机，主轴和加压装置，立柱，摇臂基座，升降电机及丝杆，扶手等组成。

In this paper, Shenyang Fumin Bridge main girder to carry out innovative design of the traveling carriage, Based on the similar design of traveling carriage , adopted under the former anchor beam arc settings to resolve the fate of the plane rotation problem , makes the main truss rod assembly by universal application of the cradle of the space cable plane cable-stayed bridge girder construction.

摘 要：本文对沈阳市富民桥主梁的施工挂篮进行创新设计，参考同类挂篮的成功设计思路的基础上，通过将前锚梁下缘设置弧形来解决索的平面转动问题，使得主桁由万能杆件拼装的挂篮应用于空间索面的斜拉桥主梁施工中。

Cylinders used to open the master switch, and then clockwise rotating low pressure regulator screw table to compress the main spring and transmission film, pad, and push-rod spring open the trap door.

使用时先打开钢瓶总开关，然后顺时针转动低压表压力调节螺杆，使其压缩主弹簧并传动薄膜、弹簧垫块和顶杆而将活门打开。

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。

The first shot should bypass the hill, falling on the right of the sand pit is advantageous for the second shot to avoid the blind and approach the green extremely.

第一杆要将球绕过山包，放在沙坑的右侧，主有得于第二杆的落点，使之避开盲点接近果岭。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。