ventilation rates

• 通风率

ventilation rates的用法和样例：

例句

1. Every effort must be made to avoid spills, regardless of the rate of ventilation, because it is impossible to avoid creating a flammable vapor cloud.
   无论通风率怎么样，液氢一旦溅出，不可避免会产生蒸气云，所以必须想尽一切办法避免飞溅。