名词中文翻译
中文翻译：主要开关
同义词：
['mains', 'main switch', 'primary switch例句：1. The main switch is located in the control panel.（主开关位于控制面板上。）']
例句：
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1. The main switch is located in the control panel.
主开关位于控制面板上。
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2.Main switches are used to control the flow of electricity.
主开关用于控制电力的流动。
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3. The main switch was accidentally turned off during the power outage.
在停电期间，主开关意外地被关闭了。