fine gravel

This was an adaptation to the steppes of the Central Asia, which largely consisted of a hard, rocky ground, covered with coarse sand, more like fine gravel and of stiff, parched vegetation.

这是一种适应中亚的大草原，这在很大程度上是一种坚硬，岩石地面布满粗砂，更像细砾和僵硬，口干舌燥植被，包括。

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Experimental Study of Frost Susceptibility of Sandy Gravel with Different Contents of Fine-grained Soil

不同掺合料砂砾石的冻胀实验研究

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Study on Dynamic Properties of Core Material and Dam-Foundation Fine Gravel of Earth-Rock Dam

土石坝心墙料及坝基细砂砾料动力特性试验研究

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The wind booms down the curved length of the trailer and under its roaring passage he can hear the scratching of fine gravel and sand.

风沿着拖车的轮廓呼啸着打转，他都能听到沙砾在风中发出刮擦声。

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It was le vel, and covered with fine hard gravel.

地面平坦，铺着又细又硬的砂砾。

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