名词
中文翻译：单动式
同义词：
['single-acting', 'single-acting mechanism']
例句：
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1.The new car has a single-action gearbox that makes it easy to shift gears.
这款新车有一个单动式变速箱，使得换挡变得很容易。
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2.The single-action lever is used to open the door without using the handle.
单动杆用来打开门，不用使用把手。
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3.The single-action system allows for quick and easy access to the controls.
单动系统允许快速且容易地访问控制装置。