English translation for "underclay"

n.
【矿物】底黏土，煤屑底黏土层。

Similar Words：

"undercharging" English translation, "undercity" English translation, "underclad" English translation, "underclass" English translation, "underclassman" English translation, "underclay limestone" English translation, "undercleaning" English translation, "underclearance" English translation, "underclearance parameter" English translation, "underclerk" English translation