摘要
针对以往窨井存在的问题 。
Aiming to solve the problems that sometime the street manhole cover was stolen, a new type burglarproof manhole device with inner handle of opener has been developed. The structure and installation was presented.
出处
《给水排水》
CSCD
北大核心
2000年第6期72-73,共2页
Water & Wastewater Engineering
