滲水土路基的英文：
permeable soil subgrade

permeable是什么意思：
a. 有浸透性的,能透過的
  • This membrane is semi-permeable.
    這層膜是半滲透性的。
  • The waste material is placed in cells with permeable membranes
    廢液置于有滲透膜的槽中。
  • The major difference is that geological structures have limited permeability.
    主要的問題是地質(zhì)結(jié)構(gòu)的滲透性有限。
soil是什么意思：
n. 土地，土壤；國土，領(lǐng)土
v.（被）弄臟
  • He died on British soil.
    他死于英國。
  • The soil is difficult to work with.
    這塊污跡很難處理。
  • The fertilization of soil is a subject to the farmers.
    肥料的施用對(duì)農(nóng)民來說是一門學(xué)問。
subgrade是什么意思：
地基; 路基
  • Road bed is the subgrade on which are laid the ballast, ties and rails.
    路基就是上面鋪著道渣，枕軌和鋼軌的底基。

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