ventilation index的意思|示意

When determining air demand for tunnel ventilation, the air demand is taken from the bigger one between calculation of CO concentration index and smog concentration index.

隧道通风需风量的确定是取CO浓度指标和烟雾指标计算出来的较大者作为需风量。

Mouse operation, seen smoking on the mice which point, if the air pollution index too high, it is necessary to open ventilation windows.

鼠标操作，看到老鼠吸烟就点它，如果空气污染指数过高，要点击窗户打开通风。

The reliability of a mine ventilation system is for the safe production an important safety index of a mine.

矿井通风系统的可靠性是矿井安全生产的一项重要安全指标。