名词
中文翻译：滚动式起重机
同义词：
['rolling crane', 'rolling derrick例句：1. The engineers are busy installing the new rolling rig on the construction site.（工程师们忙于在施工现场安装新的滚动式起重机。）']
例句：
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1. The engineers are busy installing the new rolling rig on the construction site.
工程师们忙于在施工现场安装新的滚动式起重机。
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2. The rolling rig is essential for lifting heavy loads.
滚动式起重机对于提升重物至关重要。
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3.The rolling rig was designed to be easy to maneuver in tight spaces.
滚动式起重机设计成易于在狭窄空间中操控。