gravel
石砾
gravel【土壤】
暂无补充释义。
相关词条
gravel filter layer
gravel-voiced
gravel bed (gravel base course), crushed-stone bed (crushed-rock bed)
gravel
gravel
gravel
gravel
gravel【土壤】
暂无补充释义。
gravel
gravel filter layer
gravel-voiced
gravel bed (gravel base course), crushed-stone bed (crushed-rock bed)
gravel
gravel
gravel
gravel