rotary percussion drilling

常見例句

雙語例句

• Hydraulic rotary-percussion drilling is one of five important drilling techniques recently. Itstechnique nucleus is hydro-percussive tools.
  作為當(dāng)今五大鉆探技術(shù)之一的液動沖擊回轉(zhuǎn)鉆探的技術(shù)核心是液動沖擊器。
• Rotary percussion drilling technology is one of major methods to increase the ROP and elongate the bit life when drilling through hard formations.
  旋沖鉆井技術(shù)是解決硬脆性地層機械鉆速低、鉆頭使用壽命短的主要手段之一。
• The pneumatic percussion rotary drilling is mainly operated in the area where liquid is hardly or not permitted to be used as the circular medium.
  氣動沖擊回轉(zhuǎn)鉆進主要應(yīng)用于難用或忌用液體作為循環(huán)介質(zhì)的地區(qū)。
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