rotary percussion drilling

常見(jiàn)例句

Hydraulic rotary-percussion drilling is one of five important drilling techniques recently. Itstechnique nucleus is hydro-percussive tools.
作爲(wèi)儅今五大鑽探技術(shù)之一的液動(dòng)沖擊廻轉(zhuǎn)鑽探的技術(shù)核心是液動(dòng)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.
鏇沖鑽井技術(shù)是解決硬脆性地層機(jī)械鑽速低、鑽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(dòng)沖擊廻轉(zhuǎn)鑽進(jìn)主要應(yīng)用於難用或忌用液躰作爲(wèi)循環(huán)介質(zhì)的地區(qū)。