Gas content of 14 points in Gaocheng Colliery was calculated with back calculation formula which may be used after 0.6 was multiplied to it as modification.

• 利用瓦斯涌出量反算公式；计算了告成矿14个瓦斯含量点；通过与实测数据比较；乘以0.；6的系数校正后可以使用。