geomorphy

The processes that are both artificial denudation and artificial accumulation to original geomorphy were uninterrupted, and original geomorphy was eroded by floodwater.

我国绝大多数挡水工程仍是各种土料堆筑而成,它们在抵御洪水,常有渗漏穿孔险情发生而使人措手不及。

The paleo-geomorphy before the sedimentary of the Permian formation is recovered with the Moulage method, then the karst geomorphy unit is partitioned.

采用印模法出本区二叠系沉积前的古，划分出岩溶单元，古表明，研究区古总体表现为起伏不大，西高东低，相对高差最大约130米。