The processes that are both artificial denudation and artificial accumulation to original geomorphy were uninterrupted, and original geomorphy was eroded by floodwater.
我国绝
多数挡水工程仍是各种土料堆筑而
,
在抵御洪水突袭时,常有渗漏穿孔险情发生而使人措手不及。
;
质;;质;
;;;The processes that are both artificial denudation and artificial accumulation to original geomorphy were uninterrupted, and original geomorphy was eroded by floodwater.
我国绝多数挡水工程仍是各种土料堆筑而,在抵御洪水突袭时,常有渗漏穿孔险情发生而使人措手不及。
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