这种天然级配砂砾具有级配良好、粒径易控制、易碾压成型、透水性好等特点。

The river deposit, which is made up of naturally graded sand and gravel, is characterized by its well gradation, easy control of its particle size, easy compaction and good permeability.

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并通过试验得出，含一定量细粒组分且级配良好的粗粒土渗透破坏坡降比级配不良的粗粒土渗透破坏坡降普遍要高的结论。

And it comes to a conclusion that the permeation damage slope of the coarse-grained soil of well graded with a definite proportion of fine granule is higher than that of poorly graded.

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我打量他，高大的身材配一张耐看的脸，穿着一身质地良好的休闲杉和长裤，给人的感觉熨帖而清爽，我唇角一弯，邪笑：“我的男朋友马上就来了，你还和我聊吗？”

I looked at him through toes to head. He was of tall and strong figure with a handsome face and dressed in a quality leisure outfit, leaving me an intimate and cool sense.

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