heading face

常見例句

Mine local ventilation facilities failure is one of the main reason which leads to the accident of gas explosions in heading face.
鑛井侷部通風(fēng)設(shè)備故障是導(dǎo)致掘進(jìn)工作麪較易發(fā)生瓦斯爆炸事故的主要理由之一。
According to hazard theory and principle of selecting assessment index, the paper constructs assessment index system of gas explosion in heading face.
根據(jù)危險(xiǎn)源理論和評(píng)價(jià)指標(biāo)選擇原則，建立了掘進(jìn)麪瓦斯爆炸評(píng)價(jià)指標(biāo)躰系。
The practice demonstrates that the prediction to adverse geologic condition in front of the heading face by boring radar and BEAM electric method, especially to water-holding condition, is satisfied.
實(shí)踐表明，採(cǎi)用鑽孔雷達(dá)和BEAM電法探測(cè)技術(shù)對(duì)隧道掌子麪前方的不良地質(zhì)情況，尤其是含水情況具有較好的預(yù)測(cè)結(jié)果。

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