A step motor phase locking control system and it's velocity error damping method is presented in this paper. A convenient method for engineering design is also given.

本文介绍了一种步进电机的锁相控制系统，为实现这一系统提出了步进电机速度误差阻尼方法，并给出了便于工程使用的设计方法。

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According to the requirements of, the technological reconstruction of locking control of shaft signal and machine operation equipment is carried out.

根据《煤矿安全规程》规定的要求，对井口信号与操车设备实施闭锁控制的技术改造。

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Other jurisdictions, notably New York City, make it a crime for owners or custodians to leave the weapon in such a manner that it is out of his or her immediate possession or control without making it inoperable by employing a safety locking device.

FORBES: What's Missing In The Gun Control Debate Is Talk About Gun Safety At Home

In the mid-1990s she remembers locking horns with fellow GM engineers over decisions such as which software to use to control robots and conveyors in its factories.

FORBES: Magazine Article