1·A common system is a drill unit that can be either vertically or axially mounted.
常用的是一个钻加工设备，既可以垂直安装也可以轴向安装。
2·The mathematical model of the precision drill unit with parallelogram linkage was brought up and its dynamic behaviors were analyzed with this mathematical model.
本文提出了具有平行四连杆仿形机构的精密播种单体的数学模型，并使用该数学模型对精密播种单体作了动力学分析。
3·This article probes into the process step, method and the disposal of some other basic problems of a computer-aided design for multiple spindle drill unit, which is easy to use and popularize.
本文探讨一种便于使用和推广的多轴钻组合机床计算机辅助设计的过程、步骤和方法以及其它一些基本问题的处理。
4·Typically the Business requirement is written and the team will drill down to flesh out the use cases that will drive the tests cases, the unit tests and ultimately the implementation code.
通常，编写完业务需求后，团队成员会进行深入的探讨，建立起具体的用例，由这些用例驱动测试用例、单元测试和最终代码的实现。
5·The paper mainly introduces the design method of power supply and earth-leakage circuit for the electric-coal-drill integrated unit.
本文主要介绍煤电钻综合装置电源与漏电保护电路的设计方法。
6·One great-torque motor with proper power is made to match with the rotary churn unit in pneumatic drill to form the electric pneumatic drill as one kind of powerful electrically driven tool.
将适当功率的大扭矩特种电动机与气动风炮上的旋转式冲击装置相匹配而产生出的一种有着强冲击扭力的电动工具――电动风炮。