main drainage channel meaning in English
主要集水区排水道；主排水渠
Examples
- Main drainage channels and poldered village protection scheme
河道及乡村防洪计划 - Main drainage channel
主要集水区排水道 - The main drainage channels at ngau tam mei and the upper reaches of the kam tin river near kam tin san tsuen have been substantially completed and the flood risk around the areas has been relieved
在牛潭尾和锦田河上游近锦田新村的主要排水渠工程已大致完成，该区的水浸风险已大大减低。 - Construction of a single - lane road bridge of 70 m in length across the san tin eastern main drainage channel stemdc connecting an existing unnamed road along the eastern side of stemdc near the vha and tyr
兴建长70米并横跨新田东面主要排水道的单线行车道路桥，以连接沿该主要排水道东面近车辆轮候区的现有未命名道路与淳裕路 - Drainage services department is working on the improvement of the stormwater drainage system all over the territory all the times . in particular , upgrading works for downstream portions of the main drainage channels in yuen long have been completed in 1999
渠务署不断努力改善全港各地的雨水排放系统，尤其是于1999年在元朗的排水渠下游部份完成了改善工程。