杆

The moving path and the instantaneous speed of the workpiece center point on the crank rocker arm were derived.

研究了曲柄摇杆机构中各杆长度对工件中心点运动轨迹及瞬时速度的影响规律，寻求出了符合设计条件的最优组合参数，并将其成功地用于立方氮化硼材料的精密抛光技术中，加工效率比传统的抛光方式提高50%，取得了良好的效果。

Because of the unstructured environments and the force impulse excitation of the following manipulators, the invertibility control input can not control the conducting manipulator exactly. In this paper, a new adaptive and sliding mode control scheme is developed assuming that all system parameters including the joint flexibility values are uncertain but within given bounds.

在以上方法的基础上，本文再对多杆柔性关节机械手在约束空间的轨迹优化规划问题进行了研究，首先利用坐标转换得出多杆柔性关节机械手的约束动力学模型，然后利用逆系统方法求出了系统在约束空间的次优化轨迹及力控制器。

In this paper,the formula of calculation of the axial profile of an involute helical gearis inferred.

本文推导出了渐开线斜齿圆柱齿轮轴向齿廓的计算公式，并在此基础上提出了用车削阿基米德蜗杆的方法车削渐开线蜗杆的新方法。

Its sclerocorneal muscle and ciliary muscle are flourishing,which cause its ability of double-regulating developed.The iritis sphincter and pupil enlarging muscle can regulate the size of the pupil quickly.There are rods and cones cells in Long-eared owl's retina.The dominant part of the visual cell is the rode cell and the neuromere cell being less that make its eyes high photosensistive.

巩膜角膜肌、睫状肌发达，使其具有很强的双重调节能力；虹膜括约肌、瞳孔放大肌能迅速调节瞳孔大小；视网膜中视细胞由视杆细胞和视锥细胞组成，以视杆细胞占据绝对优势，而神经节细胞较少，从而使其光敏度提高。

One of them is used each iron rod at the end of the multi-functional design.

其中之一是每支铁杆都采用了多功能杆底设计。

A mathematical model of PPSA for single screw extruder has been established based on the assumptions of power law fluid and isothermal process.

以材料学和单螺杆挤出理论为基础，研制了单螺杆并联式稳压装置。

In the program the Newton-Raphson's method is used to iterative computation; and the method of either the cylinder-arc-length or the minimum residual displacement is adopted to control the iterative process.

在分析非线性静力和动力有限元计算方法的基础上，本文采用修正的Newton-Raphson方法进行迭代计算，并采用柱面弧长法和最小残余位移法控制迭代过程，编制了一个适合于杆件体系结构的有限元分析程序，结构可以按桁架、刚架或梁杆组合体系分析。

Installed serviceable horizontal stabilizer jackscrew clutch in accordance with AMM---backlash and operational check good.

拆下水平安定面蜗杆离合器，详细检查离合盘，将不可用的离合器挂牌送航材。根据AMM—安装新的水平安定面蜗杆离合器，功能检查正常。

Depending on the joggle theory,the paper gives the face equation of annulus worm of turning and milling optional drive ratio,first kind and second kind limited curve.

这里依啮合原理给出了车削变齿距环面蜗杆的齿面方程和磨削的环面蜗杆齿面方程、一类及二类界限曲线。

The positioning of bar axis with spherical surface was introduced as well as the making and fabricating precision control of spherical joint and bar ,and the welding technology to prevent the welding deformation.

介绍了电视塔钢结构球形节点的构造特点，各杆件轴线同圆球面交点的定位，球形节点和杆件的下料、组装精度控制以及为减少或防止焊接变形所采取的焊接工艺。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。