long drill meaning in English
长钻
Examples
- After a long drill he told the squad to fall out
操练了好半天之后，他让这个班解散了。 - After a long drill the captain told his squad to fall out
在长时间操练后，队长叫他的队伍解散。 - Study on coal seam roof gas drainage from the strike of annular fracture areas by the long drill method
开采煤层顶板环形裂隙圈内走向长钻孔法抽放瓦斯研究