名词
中文翻译：三臂起重机
同义词：
['three-arm crane', 'three-arm hoist例句：1. The three-arm unloader was used to lift heavy loads from the ground.（三臂起重机被用来从地面上举起重物。）']
例句：
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1. The three-arm unloader was used to lift heavy loads from the ground.
三臂起重机被用来从地面上举起重物。
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2. The three-arm unloader was a critical component in the construction of the new bridge.
三臂起重机是新桥建设中的关键组件。
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3.The three-arm unloader was designed to be more efficient and safer than traditional methods.
三臂起重机的设计旨在比传统方法更高效、更安全。