poorly graded gravel 中文意思是什麼

poorly graded gravel 解釋
劣級配礫石
  • poorly : adv. 下賤；沒有大成就；貧窮；不體面；不夠；貧弱；拙劣。 poorly off 日子不好過。 think poorly of 不佩服，不認為好。
  • graded : 沖淤均衡的
  • gravel : n 1 〈集合詞〉砂礫，礫石。2 【地質學；地理學】砂石，礫。 gravel bed 礫層。3 【醫學】尿砂。vt （〈...
  1. 2 identify the soil as a poorly graded gravel, gp, or as a poorly graded, sand, sp, if it consists predominantly of one size ( uniformly graded ), or it has a wide range of sizes with some intermediate sizes obviously missing ( gap or skip graded )

    2如果土包含一個主要的粒徑（均勻的級配） ，或者有一個很寬的，一些中間粒徑明顯缺失的范圍（間隙或跳躍的級配）
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