红玄武土颗粒：微小的松软土，尤指用作颜料的一种红棕色粘土。

Any of various soft, fine clays, especially a reddish-brown variety used as a pigment.

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摘要：软土路基主要由粘土和粉土等细微颗粒含量多的松软土、空隙大的有机质土、泥炭土以及松散砂等土层构成。

Abstract: : the soft soil roadbed is mainly composed of clay and silty soil fine particle content of soft soil, the gap of the organic soil, peat soil and loose sand soil layer.

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那台压路机把松软的土碾平了。

The road roller crushed the soft dirt.

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我们脚下的土踩上去很松软。

The soil felt soft beneath our feet.

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我们脚下的土踩上去很松软。

The soil felt soft beneath our feet.

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