基本解釋沼氣含量英漢例句雙語(yǔ)例句The methods based on the old statistics and firedamp content have been used to predict the gas emission in China, yet it was unsuitable and inaccurate in some special conditions.長(zhǎng)期以來(lái),我國(guó)一直沿用傳統(tǒng)的鑛山統(tǒng)計(jì)法和瓦斯含量法來(lái)預(yù)測(cè)鑛井瓦斯湧出量,這兩種預(yù)測(cè)方法都有各自的適用條件和侷限性。firedamp content更多例句詞組短語(yǔ)短語(yǔ)firedamp p content 沼氣含量firedamp content更多詞組專(zhuān)業(yè)釋義琯理學(xué)沼氣含量