sand riverbed

常見例句

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 .
從這里只是一小步，成為河床視察沙洲，倒木和樹樁上留下的最后的洪流。
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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(tài)變化引起溯源沖刷，進而導致河床全面調(diào)整，影響河床穩(wěn)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(xiàn)有的常規(guī)方法在粉細沙河床上修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；為此，提出采用斜向灌漿護坡新技術(shù)修建永久性防洪護堤。