单项选择题
A.pump B.tube C.grab D.bucket
浮吊（）A. gantry craneB. floating craneC. shore craneD. ov...
单项选择题浮吊（）
A. gantry crane B. floating crane C. shore crane D. overhead crane
吊货索（）A. cargo fallB. cargo runnerC. cargo lightD. cargo...
单项选择题吊货索（）
A. cargo fall B. cargo runner C. cargo light D. cargo hook
吊货网兜（）A. cargo runnerB. cargo netC. cargo wireD. cargo ...
单项选择题吊货网兜（）
A. cargo runner B. cargo net C. cargo wire D. cargo chain
