名词
中文翻译：平衡杆
同义词：
['balance', 'lever', 'counterbalance']
例句：
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1.The engineer used a lever to balance the heavy load.
工程师使用杠杆来平衡沉重的负载。
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2.The counterbalance is designed to keep the machine stable during operation.
平衡装置设计用来在操作期间保持机器稳定。
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3.The weight of the object was balanced by the counterweight.
物体的重量通过配重来平衡。