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Dirt Bed

1、[地质]污层

... 乌拉梯斯期 Ulatisian 污层 dirt bed 污积带 dirt band ...

2、淤泥层

淤泥层 dirt bed; dirt-bed; mud; silt layer; silt seam; silt stratification淤泥池 lagoon .

3、污层

...dirigible wheel ==> 操向轮dirt bed ==> 污层dirt bucket ==> 装土斗 ...

dirt-bed淤泥层

mechanical model of dirt bed海洋土力学模型

地球科学

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