名词
中文翻译：半门式起重机
同义词：
['half-track crane', 'semi-trailer crane']
例句：
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1.The half-gantry crane was used to transport heavy equipment across the river.
半门式起重机被用来在河上运输重型设备。
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2. The construction crew needed a half-gantry crane to lift the roof off the building.
建筑工人需要一台半门式起重机来把屋顶从建筑物上卸下来。
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3.The engineer had to use a half-gantry crane to move the heavy machinery into place.
工程师不得不使用一台半门式起重机来移动重型机械到指定位置。