The float contains a single pole double throw switch, which can be used to give adjustable control over the level of liquid in tanks, pits and dams.
浮动包含一个单刀双掷开关，它可以用来给调节控制以上的液体储罐，坑槽和水坝的水平。
The float contains a single pole double throw switch, which can be used to give adjustable control over the level of liquid in tanks, pits and dams.
浮动包含一个单刀双掷开关，它可以用来给调节控制以上的液体储罐，坑槽和水坝的水平。
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