Based on engineer example, it is illustrated, that modified vent il ation of buildingdrainagesystem can improve drainage system and indoor air quality.
结合工程实例,说明了加强建筑排水系统通气管道设置后,排水系统工况及室内空气卫生状况可以得到改善。
2
Proceeding with the working character of buildingdrainagesystem, the principle of PPI is analyzed in the paper.
从普通排水管系的工作特性出发,分析了硬聚氯乙烯螺旋单立管的工作原理及其优点。
3
It is widely used in water supply and drainagesystem, high-rise building and industrial park.