名词
中文翻译：Unknown
同义词：
['movable iron', 'movable steel']
例句：
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1. The moving iron is responsible for the smooth operation of the machine.
这个可动铁负责机器的平滑运转。
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2. The moving iron was designed to improve the performance of the engine.
这个可动铁被设计来提高发动机的性能。
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3. The moving iron is a crucial component in the construction of musical instruments.
这个可动铁是乐器建造中一个关键的组成部分。