Rainwater is channeled from the roofthrough a harvesting pipe installed in the school lobby, where it is collected and recycled.
屋顶的雨水被安装在学校大堂内的收集管收集起来并被回收利用。
2
Describes the methods of reinforcing roof of the plank and surrounding rock by using pipe-burying filling, to mak them as a whole, so as to go-through the caving zone safely and smoothly.
The subway crossing project through Hongxu Road in Shanghai is the pipe-roof project with the biggest cross-section box culvert up to now in the world.