名词
中文翻译：控制元件
同义词：
['control unit', 'control point', 'limit switch', 'safety device例句：1. The engineer designed a control element that could adjust the speed of the machine.（工程师设计了一个可以调整机器速度的控制元件。）2. The new control element significantly improved the efficiency of the production line.（新的控制元件大大提高了生产线的效率。）']
例句：
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1. The engineer designed a control element that could adjust the speed of the machine.
工程师设计了一个可以调整机器速度的控制元件。
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2. The new control element significantly improved the efficiency of the production line.
新的控制元件大大提高了生产线的效率。
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3.The safety device is an essential part of the emergency control system in factories.
安全设备是工厂紧急控制系统中必不可少的一部分。