外文翻译
2. The composition, mechanical hand
2机械手的组成
Machine hand in the form of a variety of forms, some relatively simple, some more 机械手的形式是多种多样的，有的较为简单,有的较为
complicated, but the basic form is the same as the composition of the, usually by the implementing 复杂，但基本的组成形式是相同的，一般由执行机构、
agencies, transmission systems, control systems and auxiliary devices composed.
传动系统、控制系统和辅助装置组成。
1. Implementing agencies
1.执行机构
Manipulator executing agency by the hands, wrists, arm, pillars. Hands are crawling 机械手的执行机构，由手、手腕、手臂、支柱组成。
institutions, is used to clamp and release the work piece, and similar to human fingers, to complete 手是抓取机构，用来加紧和松开工件，与人的手指相仿，能够完成 the staffing of similar actions. Wrist and fingers and the arm connecting the components can be up 人手的类似动作。手腕是连接手指与手臂的元件，可以进行
and down, left, and rotary movement. A simple mechanical hand cannot wrist. Pillars used to 上下、左右和回转动作。简单的机械手可以没有手腕。支柱用来支撑 support the arm can also be made mobile as needed.
手臂，也可以根据与要做成移动。
2. Transmission
2.传动系统
The actuator to be achieved by the transmission system. Sub-transmission system commonly 执行机构的动作要由传动系统来实现。常用
used manipulator mechanical transmission, hydraulic transmission, pneumatic and electric power 机械手传动系统分为机械传动、液压传动、