cmabbr.=(centimeter)厘米CMSabbr.质心系统(=Center of Mass System)abbr.科学计量中心[美](=Center for Measurement of Science)

1. Research result shows that controlling blasting technique is feasible to improve gas drainage under suction in hardness and low dialyzing coal bed.
   研究表明，该技术用于坚硬低透气煤层，提高矿井瓦斯抽放率是可行的。