open drainage meaning in English
开放导液法, 开放引流法, 明沟
开式排水设备
明沟排水
Examples
- Foundation ditch open drainage and plastics conduit well unified drainage
基坑明排和塑料管井综合排水施工技术 - As part of the west rail works , kcrc are constructing major open drainage channels and box culverts on behalf of the government s drainage services department
此外，九铁亦受政府渠务署委托，建造大型去水渠，作为西铁部份工程。