名词
中文翻译：Unknown
同义词：
['dual action', 'double-acting例句：1. The double-action mechanism allows for smoother operation.（这种双动式机制使得操作更加顺畅。）']
例句：
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1. The double-action mechanism allows for smoother operation.
这种双动式机制使得操作更加顺畅。
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2. The double-action system is designed to provide maximum efficiency.
这种双动式系统旨在提供最大效率。
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3.The double-action lever is used to lift heavy objects.
双动杠杆被用来提起重物。