检查、记录和操作高压设备状况，定期转换高压线路和切换试验操作。

Inspect, record and operate high voltage equipments status, regular turn over high voltage wire and test high voltage switch.

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配用电液推杆或电动推杆，可实现启闭操作，是切换密闭的理想设备。

The valve is used with electric hydraulic or electric draw stem to form a complete set to realize open-close operation It is the ideal equipment of switching seal.

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给出了多媒体集成控制系统在教学过程中的应用方法，讨论了在教学中根据需要，应用一键操作完成集成控制系统对各种多媒体教学设备的切换等问题。

The application method to multimedia integration control system in teaching is introduced, and the switch to various multimedia device in application integration control system are discussed.

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