您要查找的是不是：
- floodplain topsoils 河滩表层土
- This topsoil tends to wash away. 表层土壤要冲掉了。
- It is as if the brain is a vast floodplain. 莫山尼奇认为，大脑像个广袤的冲积平原。
- Do you know what topsoil is made of? 你知道表土是由什么构成的吗?
- Heavy rains washed the topsoil away. 大雨把表层土冲蚀掉了
- Erosion has dissolved acres of topsoil. 侵蚀作用已使大量表土层流失。
- This topsoil tends to wash away . 表层土壤要冲掉了。
- The topsoil has been almost completely washed away. 表层土壤已差不多完全给冲走了。
- Here a dry spell meant parched crops,a rainy spell,loss of topsoil. 过去这里，一有干旱庄稼就会枯死，一下雨浮土就会流失。
- Worse still, the storm washed the topsoil from the hillside. 更糟的是,暴风雨把山坡上的表土冲走了。
- In ABC soil,the uppermost zone of soil,containing humus;topsoil. 淋溶层在ABC层土壤中最上面的一层，含有腐殖土;顶层土壤
- Floods are still one of threats to the livings of floodplain of Yellow River. 如何解决这一矛盾，是摆在我们治黄工作者面前的一大课题。
- In ABC soil, the uppermost zone of soil, containing humus; topsoil. 淋溶层在ABC层土壤中最上面的一层，含有腐殖土；顶层土壤
- When all the topsoil is gone, nothing remains but worthless desert. 当表土层都被冲走后，就只留下沙漠了。
- In containers use a planting mix combined with topsoil. 在使用容器种植结构相结合的表土.
- Here a dry spell meant parched crops, a rainy spell, loss of topsoil. 过去这里，一有干旱庄稼就会枯死，一下雨浮土就会流失。
- The landform on which ancient human activity relic located was interfluvial floodplain on Yongding River Alluvial Fan. 古人类活动遗址所处地貌部位为古永定河冲积扇的河间冲积平原。
- On the wide level acres of the valley the topsoil lay deep and fertile. 在山谷中广袤平坦的大地上，覆盖着厚实肥沃的土层。
- Worse still, the annual torrential rains washed the topsoil from the hillside. 更糟的是，每年都有暴雨把浮土从山坡上冲走。
- The Parana floodplain marsh retains a large amount of nutrients being stored mainly in the sediment compartment. 巴拉那洪泛区湿地保存着大量的营养物,主要储存在沉淀物质里。
