基本解釋[經(jīng)濟(jì)學(xué)]桅式吊車英漢例句雙語(yǔ)例句Do not throw objects off the floor, mast or derrick.不允許從鑽臺(tái)上或井架上,往下亂扔?xùn)|西。blog.sina.com.cnDo not leave pipe or collars that are not in use standing in mast or derrick.不許在井架上排放用不著的鑽桿和鑽鋌。blog.sina.com.cnThe frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate, its section is oblong armor plate, and its material is HG60.爲(wèi)滿足液壓輪式通井機(jī)的使用要求而設(shè)計(jì)的桅桿式井架採(cǎi)用板銲結(jié)搆, 主躰截麪爲(wèi)長(zhǎng)方形的方形鋼, 材料爲(wèi)HG60。mast derrick更多例句詞組短語(yǔ)短語(yǔ)mast or derrick 井架guyed -mast derrick [機(jī)]把桿起重機(jī)mast -shaped derrick 桅桿式井架single -mast derrick 單桅桿鑽塔the single -mast derrick 單桅桿鑽塔mast derrick更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)桅式吊車