单词：river sediment
river sediment的用法和样例：
例句
- Most of the sand and silt was carried down from the river.大部分泥沙都是由河流沉积下来的。
- Bottom of the upper part of He8 Submember is meandering river deposition again.在总结河流沉积模式的基础上，提出了较新颖的河流相的亚相和微相划分方案。
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