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.
提出了在石門揭煤中預防瓦斯突出的一種計算鉆孔位置的優(yōu)化方法。
The critical pressure and conditions of drilling hole burst are determined through the physics experiment of drilling hole burst.
通過鉆孔沖擊物理試驗，研究了鉆孔沖擊的臨界壓力，以及鉆孔沖擊的條件；
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.
從金田水庫大壩灌漿，總結出一套大壩斜孔造孔灌漿可行的施工工藝，為施工積累經(jīng)驗。

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

鉆孔
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．通過鉆孔沖擊物理試驗，研究了鉆孔沖擊的臨界壓力，以及鉆孔沖擊的條件；通過數(shù)值模擬，與物理試驗相同的試驗結果相驗證，并揭示了鉆孔沖擊時卸載的應力降以及能量釋放特征。
經(jīng)濟學
鉆孔