gas hole

基本解釋

This paper analyses theoretically and technologically, the reason of barrel tooth holders sealing off , of produced gas hole and cold crack.
從理論和工藝上分析滾筒齒座開焊的原因、氣孔的產(chǎn)生和怎樣減少氣孔生成、冷裂現(xiàn)象生成及其予防。
Based on analogic theory, hydraulic model was founded to choose the optimum gating system for prevention from casting defects including gas hole and misrun.
水力模擬依據(jù)相似理論，建立水力模型，選出最佳澆注系統(tǒng)，防止吸氣、澆不足等缺陷；
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That is to say, to increase discharged-pressure hole and gas releasing hole, improve coalfield ventilation to release pressure by getting into deep and natural drilling.
本文介紹了采用煤體注水法均勻釋放瓦斯，增加卸壓孔和瓦斯釋放孔，穿層鉆孔抽放，順層鉆孔抽放，增加煤體透氣性，使煤體卸壓，達(dá)到瓦斯釋放效果。

Importantly, this mud also acts as a kind of plug in the hole, preventing any oil and gas from blasting up out of the hole.
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This allowed natural gas to migrate up the hole and explode at the surface.
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The violent encounter would have stripped away most of the dwarf galaxy's stars, but it also could have compressed the gas around its central black hole, triggering a new wave of star formation.
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