名词
中文翻译：蟹钳式起重机
同义词：
['crab tractor', 'crab crane', 'crab hoist']
例句：
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1. The crab capstan was used tolift heavy loads from the dock.
蟹钳式起重机被用来从码头上吊起重物。
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2. The crab capstan was acritical part of the construction process.
蟹钳式起重机是建筑过程中的关键部分。
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3. The crabcapstan was used to transport materials tothe construction site.
蟹钳式起重机被用来将材料运送到施工现场。