常見例句Disc brake system on drilling rigs. 石油鑽機(jī)磐式剎車制動(dòng)系統(tǒng)。Calculation of wear life of driving chain on drilling rigs. 石油鑽機(jī)傳動(dòng)鏈條磨損壽命的計(jì)算AC-SCR-DC mode is the best driving mode for a drilling rig. DC敺動(dòng)方式是目前鑽機(jī)最好的敺動(dòng)傳動(dòng)方式。Analysis of working characteristics of disc brake system on drilling rigs. 鑽機(jī)磐式剎車系統(tǒng)鑽進(jìn)特性分析By the same token, the cost of hiring some kinds of drilling rigs is falling. 同樣雇用某些類型的鑽機(jī)成本也在下降。MAN300 drilling rig is working in gravel area in West Luntai, Sinkiang. 300型鑽機(jī)在新疆輪臺西礫石區(qū)進(jìn)行地震鑽井施工。 返回 drilling rigs