Underground ventilation的用法和样例：
例句
- It is suggested that the plenum ventilation should be first adopted in principle in the ventilation planning of uranium mines.
建议铀矿井通风工程设计中应优先采用压入式通风方式。 - The standard value of ventilation resistance and coefficient of frictional resistance is very significant to the ventilation management of the mine as the basic data.
标准风阻值和标准摩擦阻力系数值作为矿井通风技术管理的基本资料对矿井通风管理具有重要意义。
