rotary drilling

常見例句

Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
旋轉(zhuǎn)鉆進(jìn)是巖土工程鉆探的主要鉆進(jìn)方式，從能量守恒原理出發(fā)，對(duì)旋轉(zhuǎn)鉆進(jìn)的能量進(jìn)行分析。
Theoretically, the impacting-rotary drilling technique is one of the most effective methods of drilling hard strata.
從破巖理論上講，沖擊旋轉(zhuǎn)鉆井技術(shù)是解決硬地層鉆進(jìn)難題最有效的方法之一。
According to the principle mentioned above, a Model CZT -1 autocontrol device for rotary drilling has been successively developed.
按此設(shè)想研制成功了CZT-1型牙輪鉆進(jìn)參數(shù)自動(dòng)調(diào)節(jié)裝置。