core drill bit

常見(jiàn)例句

A new type of thin-wall diamond core drill bit is developed through the analysis of drilling feature on the R.
通過(guò)對(duì)在鋼筋混疑土、花崗巖等建築物上鑽孔特點(diǎn)的分析，本文設(shè)計(jì)了一種新型的取芯式薄壁金鋼石鑽頭。
A new type of thin-wall diamond core drill bit is developed through the analysis of drilling feature on the R. C and granite structures.
通過(guò)對(duì)在鋼筋混疑土、花崗巖等建築物上鑽孔特點(diǎn)的分析，本文設(shè)計(jì)了一種新型的取芯式薄壁金鋼石鑽頭。
The core drilling method and the obtained achievement are introduced with respect to the bit and core barrel used in different formation.
根據(jù)不同地層所採(cǎi)用的鑽頭和取心器，介紹了不同地層的鑽進(jìn)取心方法和取得的成果。