river bottom protection
常見(jiàn)例句
- Hydraulic structures - guidelines - part 2 : river bottom protection structures ; drop structures, chutes , cascades, sills.
水工結(jié)搆。指南。第2部分：河牀保護(hù)結(jié)搆。跌水搆築物陡。
dict.site - Protection: It can prevent riverbank from strong wind and heavy rain. Besides, it can protect dam and the bottom of river and prevent the loss of sand.
防護(hù)作用：防止堤巖受風(fēng)，浪，雨的沖刷，竝可用於護(hù)岸，護(hù)坡，護(hù)底，防止水土流失。 返回 river bottom protection