percussive rotary drilling

常見(jiàn)例句

雙語(yǔ)例句

• The percussive rotary drilling technology being the most efficient way to break up the hard rocks has been highly thought of by oil drilling circles commonly at present.
  沖擊旋轉(zhuǎn)鉆井技術(shù)這一被認(rèn)為是破碎堅(jiān)硬巖石最有效的方法目前在石油鉆井界得到了普遍重視。
• The conclusions are as follows: (1) under high pressure, the intensity of granite gradually decreases and the percussive rotary drilling speed increases gradually with the increase of temperature;
  得出以下結(jié)論：①在高圍壓狀態(tài)下，隨著溫度升高，花崗巖的強(qiáng)度逐漸降低，沖擊旋轉(zhuǎn)鉆進(jìn)速度隨之逐漸增大；
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• Study on the percussive rotary drilling law under various temperatures is of great significance because it can provide a theoretical basis for new drilling process designed for geothermal production.
  研究不同溫度條件下沖擊回轉(zhuǎn)鑿巖規(guī)律具有重要意義，可以為設(shè)計(jì)地?zé)衢_(kāi)采的新型鉆探方法提供理論依據(jù)。
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