The user controls Paramecia using a handheld device, which delivers electrical pulses to different sides of the playing field.

用户用一台向游戏场景不同方向发送电子脉冲的手持设备控制草履虫。

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Ground fault circuit interrupters are required whenever moisture may contact electrical equipment or the user.

只要湿气可能接触到电器设备或使用者，则都应配备接地故障断路器。

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The consumers included fuel gas user in town, industrial user, electrical power user and pipeline network company in some areas etc.

其用户包括了城市燃气用户、工业用户、电厂用户和区域管网公司等类型的用户。

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The first advantage is that ozone can be made on the spot (from air) with an electrical discharge, so it does not have to be trucked to the user.

FORBES: The Ozone Solution