PLL circuit is adopted in order to control video signal synchronization.
系统中采用锁相环路控制视频同步。
The magnetic control video camera has the advantages of capability of utilizing the magnetism to focus, convenient operation, simple structure and low cost.
利用磁性实现调焦，操作方便而且结构简单，降低了成本。
The command posts consists of a number of subsystems, including satellite communications, antenna control, video conference, surveillance TV, IP telephone, and power supply.
指挥站由许多子系统组成，包括卫星通信、天线控制、视频会议、监视电视、IP电话和电源。
The command posts consists of a number of subsystems, including satellite communications, antenna control, video conference, surveillance TV, IP telephone, and power supply.
指挥站由许多子系统组成，包括卫星通信、天线控制、视频会议、监视电视、IP电话和电源。
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