hardpann. 硬質地層、未開墾的硬地、粘土層學術名詞硬盤:礦冶工程、地質學、生態學硬磐:礦物學、植物學、土壤學地下礫層:礦冶工程、地質學鐵盤層:礦冶工程鐵磐:礦物學盤層:地質學硬盤泥:水利工程學英文釋義crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions