这些颗粒的大小变化范围，从粗粉砂级到砂级或细砂级。

These may range from coarse silt to sand or pebble size.

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在除命名为砾、砂、粉砂和粘土之外的其它沉积物类型上，都已发现有红树植物生长分布。

Mangrove has been found growing on the flats of all sediment types except gravel, sand, silt and clay.

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试验得到粉砂的动强度高于一般砂性土，主要是因为制样控制干密度比较大。

Because of the high dry density the dynamical strength of silty sand is higher than those of ordinary sands.

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