海口首条地下综合管廊主体完工 海南日报海口7月7日讯(记者郭萃)记者从海口市地下综合管廊投资管理有限公司获悉，海口首条地下综合管廊天翔路地下综合管廊已实现主体完工，水务、燃气两家管线应用单位正在...
Haikou first underground comprehensive pipeline corridor main body completed Haikou Daily July 7 (Reporter Guo Sui) reporter from Haikou City underground comprehensive pipeline investment management Co., Ltd. learned that Haikou first underground comprehensive pipeline corridor Tianxiang Road underground comprehensive pipeline corridor has been completed, water, gas pipeline application units are uuuuuuuuu
