“二面体”的拼音为：èr miàn tǐ...

“二面体”的英语可以翻译为：[数] dihedron ...

直接找矿标志为含五角十二面体黄铁矿铁方解石钾长石脉.The ore - hunting indicator is of calcite - potassium feldspar veins containing pyritohedron pyrite....