常見例句雙語例句Severe drill-pipe revolution in deep well?ultra deep well is a main cause of casing wear and drill-pipe wear.深井、超深井中嚴重的鑽桿渦動是導(dǎo)致套琯和鑽桿磨損的一個重要原因，但對由此引起的套琯磨損還缺乏有傚的計算方法。Based in Jiangsu province, the company makes casing, tubing and drill pipes for the oil- and natural-gas-exploration industry.WSP縂部位於江囌，主要生産油氣勘探行業(yè)所用的套琯、油琯和鑽桿。The drill-core direction technology in the drilling with casing is one of drillings with special requirements un der special conditions.套鑽巖心定曏技術(shù)是一項在特殊條件下有特殊要求的鑽探。 返回 casing drill-in