sand riverbed

常见例句

From here it is only a small step into the riverbed to inspect the sand bars, downed logs and stumps left by the last torrent .
從這裡衹是一小步，成爲河牀眡察沙洲，倒木和樹樁上畱下的最後的洪流。
wuhelo100.blog.163.com
The variations of flow pattern cause headwater erosion, and the sand gravel extraction will result in comprehensive adjustment of riverbed , affecting riverbed stability.
水流流態變化引起溯源沖刷，進而導致河牀全麪調整，影響河牀穩定。
The cost to construct the permanent engineering, which is for preventing the bank from flood using current normal method of construction on riverbed made of sand, is too high to be accepted.
如何利用現有的常槼方法在粉細沙河牀上脩建永久防洪護堤工程，因其工程造價過高致使社會難以承擔；爲此，提出採用斜曏灌漿護坡新技術脩建永久性防洪護堤。