By developing new inputair effect, removing and controlling internal source of pollution, we can improve IAQ.
通过发挥新风效应、消除和控制室内污染源等方法可以改善室内空气品质。
2
If the inputair quality is poor, can cause electromagnetic valve, the valve core oil pollution within the open mouth can't completely, the difficult open.
如果输入空气质量差，会造成电磁阀内产生油污，阀芯开启困难，阀口不能完全打开。
3
A daily input of water, food, and energy of various kinds is matched by an output of sewage, solid waste, air pollutants, energy, and materials that have been transformed in some way.