名词
中文翻译：单极刀开关
同义词：
['single pole switch', 'single-pole switch']
例句：
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1.The single-pole knife switch is a simple and convenient tool for cutting wires.
单极刀开关是一种简单且方便的工具，用于切割电线。
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2. In the workshop, we use a single-pole knife switch to turn on the lights.
在车间里，我们使用单极刀开关来打开灯。
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3.The single-pole knife switch was designed to prevent accidental contact with live wires.
单极刀开关被设计成防止意外接触带电导线。