Hydraulic electric control valves are installed in the water supply pipeline as an electric remote control to open and close.

水力电动控制阀用于安装在给水管线上作为电动遥控开启和关闭的功能。

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Rolling shutter opening methods are varied, electric remote control, electric button, manual remote pole, pull strap, spring shaft drive and so on.

卷帘窗的开启方式有多种多样，电动遥控、电动按键、手动摇杆、手拉皮带、弹簧轴驱等。

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Secondary Voltage Control is a new way of voltage control, firstly the power system is divided into many control areas whose electric distance is remote.

二级电压控制是一种新型的电压控制方式，它首先是将整个电力系统分成若干彼此电气距离较远且相互近似解耦的控制区域。

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There are a number of different electronic training aids, including an anti-bark collar, remote control collars used to control any unwanted behaviour, electric shock training leads and electric boundary or "freedom" fences.

BBC: Joan Andrews and Bonny