derrick block

基本解釋

• [經(jīng)濟(jì)學(xué)]提升滑輪

英漢例句

雙語(yǔ)例句

• 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(chē)上，當(dāng)蛇皮接繩器到達(dá)天車(chē)時(shí)，通知司鉆。
  blog.sina.com.cn

• derrick block更多例句

詞組短語(yǔ)

短語(yǔ)

• derrick head block 吊桿頭滑車(chē)
• derrick heel block 吊桿底導(dǎo)向滑車(chē);吊桿座滑車(chē)
• derrick k block 提升滑輪
• derrick head span block 吊桿頭跨繩滑車(chē)
• derrick head purchase block 上吊貨滑車(chē)

• derrick block更多詞組

專(zhuān)業(yè)釋義

經(jīng)濟(jì)學(xué)

• 提升滑輪