The city planner decided to build an underground drainage system.
Underground drainage oil, the underground drainage oil is the oil that is smelted out from the underground drainage.
Design of remote monitoring system for the mine underground drainage based on ARM
The excavation technology and design parameters of a polit chamber blasting of underground drainage system in Xiaowan power station are introduced.
The rush of water downed utility lines, broke underground drainage pipes and flipped cars that remain Mired in mud.