名词
中文翻译：Unknown
同义词：
['crane', 'hoist', 'crane truck']
例句：
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1. The lift-truck was used to transport heavy equipment from the construction site to the factory.
升降机被用来将重型设备从建筑工地运送到工厂。
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2. The lift-truck operator carefully monitored the load and ensured it was balanced.
升降机操作员仔细监控负载，并确保其平衡。
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3. The lift-truck was a vital tool in moving large loads across the construction site.
升降机是移动大型货物穿越建筑工地的重要工具。