accumulation layer造句
造句与例句手机版
- Railway jacking bridge engineering passing through sand pebble ( gravel ) layer , because it is a complex loose coarse fragment accumulation layer , the roadbed must be reinforced
摘要铁路顶桥工程中遇到砂卵(砾)石层时,因砂卵(砾)石层是一种复杂松散粗碎屑堆积层,因此必须对铁路路基进行加固。 - It's difficult to see accumulation layer in a sentence. 用accumulation layer造句挺难的
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