名词
中文翻译：旋转桅杆式起重机
同义词：
['rotating mast-type jib crane', 'rotating mast type jib crane']
例句：
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1. The revolving mast-type jib crane is used for lifting heavy loads in construction sites.
旋转桅杆式起重机用于建筑工地搬运重物。
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2. The engineers designed a new model of revolving mast-type jib crane to improve efficiency.
工程师们设计了一种新型的旋转桅杆式起重机，以提高效率。
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3. The revolving mast-type jib crane was the first to be introduced in this country's construction industry.
这种旋转桅杆式起重机是这个国家建筑业引进的第一台。