微粒的...

It belongs to the micrograined Au deposit of structural hydrothermal alteration type.明显受构造、地层及岩性控制,属构造一热液蚀变岩型微粒金矿....

micrograined的音标：micrograined的英式发音音标为：[maɪkrəɡ'reɪnd]micrograined的美式发音音标为：[maɪkrəɡ'reɪnd]...