基本解釋[能源科學(xué)技術(shù)]起升井架英漢例句雙語(yǔ)例句The structure of the derrick is triple-section telescoping structure, substructure is parallelogram structure, can be lifted by hydraulic cylinder.井架采用三節(jié)伸縮式結(jié)構(gòu)，底座采用平行四邊形結(jié)構(gòu)，能用液缸整體起升。www.chinashine.com.cnderrick telescoping更多例句詞組短語(yǔ)短語(yǔ)telescoping derrick 伸縮式井架;伸縮式鉆塔telescoping shaped derrick 伸縮式井架derrick telescoping更多詞組專業(yè)釋義能源科學(xué)技術(shù)起升井架