1)chain block,链条吊车2)twin hoist trolley,双吊链小车3)sling type truck,吊链型货车4)chain drop,悬链吊架;链条吊灯架5)racing bicycle chain,赛车链条6)block chain,滑车链条
用法例句
Considering the strict requirements of racing bicycle chain, the optimum composition had been selected from the tested steels, using the screen method in laboratory test combined with industrial test.
