机械作用

The working principle of a pump rod joint is to place the joint hoop bar stock into the stock bin. When the magic hand moves to the material receiving, with the help of gravity action, the bar stock automatically fall to the magic hand. When the pneumatic cylinder drives the magic hand to move to the designated location of the turning fixture, with the live center of the pneumatic tailstock automatically sent, the bar stock will be fixed between the apex of the lathe and the live center of the pneumatic tailstock. Then the magic hand automatically returns to the charging position with a single charging action completed, and prepares for the next charging.

它的工作原理是先将接箍棒料放置于料仓内，当机械手运动到接料位置时，棒料由于重力作用，自动掉落到机械手中，通过气缸带动机械手运动到指定车削位置时，尾座活顶尖自动送出，将棒料固定于机床顶尖与尾座活顶尖之间，机械手自动返回装料位置，完成单次供料动作，为下次送料做准备。

In the process of keratoconus, corneal mechanical resistance reduces. The function ofβig-h3 is going to be found out.

在圆锥角膜病变的发生过程中，角膜的机械抵抗力逐渐降低，角膜变薄前凸，βig-h3在发病机制中所起的作用有待于进一步探讨。

For example, machining centers and flexible manufacturing technology, break through the many varieties of case processing technology difficulties; spiral bevel gear machining technology to solve high-speed sewing machine driving accuracy and functioning of the key issues of noise; holes line grinding processing technology to meet the needs a key-hole parts precision and roughness of the basic requirements; sphere processing technology, adapted to the high-speed packet transmission machine components both inside and outside the spherical exercise the continuous improvement of machining accuracy; precision casting process technology and advanced heat treatment technology for the development of industrial machine effective support.

例如，加工中心及柔性制造技术，通过对案件的处理技术困难，许多品种突破；螺旋锥齿轮加工技术来解决高速缝纫机发球准确率和噪音的关键问题发挥作用；孔磨削加工技术路线的满足需求的关键孔零件的精度和粗糙度的基本要求；领域的加工技术，适应高速数据包传输内外球面行使加工精度的不断提高机械零件，精密铸造工艺技术和先进的热为工业机器处理技术发展的有效支持。

Objective To discuss the roles of mechanical ventilation associated with bronchoalveolar lavage when necessary in patients with severe respiratory failure.

目的探讨机械通气必要时联合支气管肺泡灌洗在ICU治疗呼吸衰竭的作用。

The average greatest grain-sizes of lithic fragments and pumice fragments in pyroclastic flow deposits decrease with increasing distance from the crater, indicating that gravity sorting and mechanical wearing did occur during the transportation of the pyroclastic flow.

火山碎屑流堆积中的岩屑和浮岩的平均最大粒度随着离开火山口距离的加大而减小，反映火山碎屑流搬运过程中存在重力分选和机械磨损作用。

Then, the equation was changed into the standard form of the Mathieu equation using Galerkin method.

首先在载流薄板的磁弹性非线性运动方程、物理方程、几何方程、洛仑兹力表达式及电动力学方程的基础上，导出了载流薄板在电磁场与机械荷载共同作用下的磁弹性动力稳定方程，然后应用Galerkin方法将稳定方程整理为Mathieu方程的标准形式，并将薄板的动力稳定性问题归结为对Mathieu方程的求解。

Based on the magnetic-elasticity nonlinear kinetic equations, physical equations, electrical kinetic equations and the expression of Lorentz forces, the magnetic-elasticity kinetic buckling equation of a current-carrying plate applied mechanical load in a magnet field were derived. The equation was transformed into the standard Mathieu equation by using Galerkin method. Thus, the magnetic-elasticity kinetic problem was changed into a problem of solving the Mathieu equation.

在载流薄板的磁弹性非线性运动方程、物理方程、洛仑兹力表达式及电动力学方程的基础上，导出了载流薄板磁弹性动力屈曲方程，并应用Galerkin原理把屈曲方程整理为Mathieu方程的标准形式，将载流矩形薄板在电磁场与机械荷载共同作用下的磁弹性屈曲问题归结为对Mathieu方程的求解问题。

Based on the magneticelasticity nonlinear kinetic equations, physical equations, electrical kinetic equations and the expression of Lorentz forces, the magneticelasticity kinetic buckling equation of a currentcarrying plate applied mechanical load in a magnet field were derived. The equation was transformed into the standard Mathieu equation by using Galerkin method. Thus, the magneticelasticity kinetic problem was changed into a problem of solving the Mathieu equation.

在载流薄板的磁弹性非线性运动方程、物理方程、洛仑兹力表达式及电动力学方程的基础上，导出了载流薄板磁弹性动力屈曲方程，并应用Galerkin原理把屈曲方程整理为Mathieu方程的标准形式，将载流矩形薄板在电磁场与机械荷载共同作用下的磁弹性屈曲问题归结为对Mathieu方程的求解问题。

This paper probes into how to give play to the leading role of teachers in mechanical drawing course from four aspects.

从4个方面论述了在《机械制图》课中如何发挥教师的主导作用。

Vibration processing/molding has been recently developed, in which polymer melt essentially flows or deforms under periodic stress in direct/superposed mechanical oscillation or ultrasonic vibration shear/pressure so that the flow field and some physical processes are varied.

近年来出现了振动加工成型，其实质是在机械振动、超声波的直接作用或叠加在剪切、压力流上，使聚合物熔体在周期性变化的应力下流动和变形，从而改变流场类型、强化流场强度和一些物化过程。振动会影响材料的粘度和松弛行为，所以也会影响分子扩散和剪切速率敏感的共混等过程。

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。