本文是基于双闭环直流驱动原理及双闭环直流驱动系统工程设计方法，设计出应用于直流电动机的双闭环直流驱动系统。
We have designed the DC drive system of double closed loops according to the methods of the project design, which based on the DC drive regulation principle.
用安全联锁系统工程设计中电磁阀的几个应用实例，说明用于安全联锁的电磁阀的设计方法和应注意的问题。
The design way and pointing out some problems which need to be noticed by supplying some practical examples of solenoid in safety interlock is introduced.
为了开展系统工程设计及实现工作、将系统与大桥结构结为一个有机的整体，这就要求对工程设计及实现中涉及的技术、工艺、方法等问题进行研究。
In order to carry out the engineering design and realization, and combine the system and bridge structure an integer, the study on the involved technology and method must be fulfilled.
用安全联锁系统工程设计中电磁阀的几个应用实例，说明用于安全联锁的电磁阀的设计方法和应注意的问题。
The author has designed two kinds of safety interlocking devices for typical fast-open pressure vessels which are suitable to be used in manual operation and automatic operation.
用安全联锁系统工程设计中电磁阀的几个应用实例，说明用于安全联锁的电磁阀的设计方法和应注意的问题。
The author has designed two kinds of safety interlocking devices for typical fast-open pressure vessels which are suitable to be used in manual operation and automatic operation.
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