quantity of gas emission的用法和樣例：
例句
- The result offers some basis for predicting gas emission quantity accurately.
計算結果為瓦斯湧出量的準確預測提供了依據。 - Under gassy coal seam condition, the full-heading development is employed.Because of the fast heading a high rate of gas emission arises.
在瓦斯含量較大的煤層採用綜掘掘進巷道，由於掘進速度快，出現了瓦斯湧出量過大的現象。
