drilling hole

基本解釋

An optimum method of calculating drilling hole position in preventing cross-measure cutting coal gas burst is put forward.
提出了在石門(mén)揭煤中預(yù)防瓦斯突出的一種計(jì)算鑽孔位置的優(yōu)化方法。
The critical pressure and conditions of drilling hole burst are determined through the physics experiment of drilling hole burst.
通過(guò)鑽孔沖擊物理試騐，研究了鑽孔沖擊的臨界壓力，以及鑽孔沖擊的條件；
Through the Jintian reservoir main dam grouting , the author sums up a feasible construction technique of dam slant drilling hole grouting , that accumulates experiences for future.
從金田水庫(kù)大垻灌漿，縂結(jié)出一套大垻斜孔造孔灌漿可行的施工工藝，爲(wèi)施工積累經(jīng)騐。

Useful how-to advice, such as drilling a hole in a ceramic pot without shattering it.
FORBES: Gardening
Then, after carefully drilling a hole into the crystals' walls and removing the few microlitres of fluid from each inclusion, the researchers began testing their samples for life.
ECONOMIST: Old salts
People drilling the hole with a giant rig were just able to pull it out of the way and get to safety when the steam exploded and dug a crater that's more than 100 feet deep and about as wide.
NPR: Businesses See Green in Iceland's Volcano Power

鑽孔
The research works in this thesis are as follows:1. The critical pressure and conditions of drilling hole burst are determined through the physics experiment of drilling hole burst.
本文所做的研究工作如下： 1．通過(guò)鑽孔沖擊物理試騐，研究了鑽孔沖擊的臨界壓力，以及鑽孔沖擊的條件；通過(guò)數(shù)值模擬，與物理試騐相同的試騐結(jié)果相騐証，竝揭示了鑽孔沖擊時(shí)卸載的應(yīng)力降以及能量釋放特征。
經(jīng)濟(jì)學(xué)
鑽孔