河流侵蚀 [
hé liú qīn shí]
river erosion
- 第一,过度砍伐引起的河流上游的侵蚀,第二,严重的泥沙淤积抬高了主干道的河床。
First , erosion resulting from excessive deforestation in the upper reaches of the river and , second ,heavy silting which raised the riverbed in the main channel . - 因为你喜欢野外活动,也许你能找到办法解决土壤侵蚀问题,那样就可以防止世界上主要河流侵蚀其河岸的问题了。”
Since you like the outdoors, maybe you'll find a solution for soil erosion that will prevent the great rivers of the world from eroding their banks. - 强大的哥伦比亚河流无数年的侵蚀,将这片富有戏剧性的80英里长(130公里长)的河谷雕刻成了喀斯特地貌的山脉。
Eons of erosion by the mighty Columbia River carved this dramatic 80-mile-long (130-kilometer-long) gorge into the Cascade Range.
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