mine gas emission quantity

• 瓦斯涌出量

mine gas emission quantity的用法和样例：

例句

1. The result offers some basis for predicting gas emission quantity accurately.
   计算结果为瓦斯涌出量的准确预测提供了依据。
2. Under gassy coal seam condition, the full-heading development is employed.Because of the fast heading a high rate of gas emission arises.
   在瓦斯含量较大的煤层采用综掘掘进巷道，由于掘进速度快，出现了瓦斯涌出量过大的现象。