derrick man
常見例句
- The driller and the derrick man must remain in constant radio contact.
司鑽和井架工必須用對講機(jī)一直保持聯(lián)系。
blog.sina.com.cn - The derrick man, positioned at the crown block, is to advise the driller when the snake is coming through the crown sheave.
井架工看守在天車上，儅蛇皮接繩器到達(dá)天車時，通知司鑽。
blog.sina.com.cn - The air hoist may be used to hoist a workman (other than derrick-man) when a bosom chair with safety belt or derrick climbing belt is used to hoist the workman.
可以使用配了安全帶或助爬帶的工作吊椅進(jìn)行高空作業(yè)。 返回 derrick man