
飞沙走砾
砾石
lìshí
[gravel; whestone] 碎小石块
砾石屋面
lìshí wūmiàn
[gravel roofing] 在沥青面层上嵌有砾石的组合屋面层
砾岩
lìyán
[conglomerate; conglomeration] 由水冲岩块的磨圆碎块固结而成,或卵石经硅质或泥质物胶结而成的岩石

飞沙走砾
砾石
lìshí
[gravel; whestone] 碎小石块
砾石屋面
lìshí wūmiàn
[gravel roofing] 在沥青面层上嵌有砾石的组合屋面层
砾岩
lìyán
[conglomerate; conglomeration] 由水冲岩块的磨圆碎块固结而成,或卵石经硅质或泥质物胶结而成的岩石