GuanZhengWu Sick
"I don't know anything else, but the pipes in this area were buried only at the beginning of this year. In order to solve the problem of accumulated water under the bridge, the diameter is 2.5 meters, and there are still about 2 meters of space including the accumulated water inside. Moreover, the path laid by the pipeline is shorter than the distance we take to the street." Because it is his own professional field, Gao Zhicheng explained skillfully.
"Let's make a detour. I am already badly smoked. If I go into the sewer to smell the methane for a while, I will probably have to die." Wang Dahao strongly opposed the plan to drill sewers.