river bottom protection
常見例句
- Hydraulic structures - guidelines - part 2 : river bottom protection structures ; drop structures, chutes , cascades, sills.
水工結構。指南。第2部分：河床保護結構。跌水構筑物陡。
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.
防護作用：防止堤巖受風，浪，雨的沖刷，并可用于護岸，護坡，護底，防止水土流失。 返回 river bottom protection