Humidification helps to soften crusts and tenacious secretions which block tracheobronchial tree.

化有助于软化堵塞气管的结痂和粘稠的分泌物。

Here, humidification is installed into the engineering of the house.

这里，统被安装到了房屋的工程中。

The water-cooled central air conditioning and humidification system at the site help maintain the temperature in the building at about 20 C and the humidity at 80 percent.

现场的水冷中央空调和统，使楼内温度保持20℃左右，度保持80%左右。