surface drain meaning in English

地表排水沟
地面排水沟
玫排水
明沟排水
排涝沟

So do take anti - mosquito measures . fill in puddles in abandoned fields and remove water from surface drains . don t cultivate on a hillside without permission
市民要做好防蚊措施，最重要是填平荒田的水洼和清除明渠积水，切勿在山边擅自开垦耕种。
So do take anti - mosquito measures . fill in puddles in abandoned fields and remove water from surface drains . don t cultivate on a hillside without permission
市民要做好防蚊措施，最重要是填平荒田的水洼和清除明渠积水，切勿在山边擅自开垦耕种。
On cheung chau island , the water quality at cheung chau tung wan and kwun yam improved significantly after works in the mid 1990s in which wastewater was diverted away from the surface drains into which it had previously been flowing
长洲东湾和观音湾泳滩的地面排水渠以往时有污水排放造成污染， 1990年代中期排水渠改道后，两滩的水质有了大幅的改善。