double-drum hoist是什么意思，double-drum hoist的翻译，double-drum hoist音标、读音、用法和例句

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double-drum hoist是什么意思，double-drum hoist的翻译，double-drum hoist音标、读音、用法和例句_沉淀汉英词典

double-drum hoist

基本解释

专业释义

機械工程