名词
中文翻译:杠杆返回指示器
同义词:
['lever indicator', 'lever signal']
例句:
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1.The lever returned the door open.
杠杆打开了门。
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2.The lever is used to adjust the tension of a spring.
杠杆用于调整弹簧的张力。
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3.The lever indicated that the machine was not functioning properly.
杠杆表明机器没有正常工作。