... 级配不良的 badly graded; disproportionately graded; poor graded; poorly graded; poorly-graded; poorly-sorted 级配不良土 poorly graded soil; poorly-graded soil 级配不良的砂 badly graded sand ...
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poorly-graded soil 不良级配土 ; 级配不良土
poorly - graded soil 级配不良土
poorly graded soil
分级差的土壤
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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.
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。
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