The basalt of the Indo-Chinese epoch in the eastern Gejiu plays an important role in the formation of the Gejiu tin-polymetallic ore deposits. 摘要個(gè)舊東區印支期玄武巖對個(gè)舊錫多金屬礦床的形成有重要的作用。
The test research to optimize processing parameters had been carried out systemically for Bi roughing of certain multi-metal ore containing Bi, Zn and Fe. 對某鉍鋅鐵多金屬礦的鉍粗選工藝進(jìn)行了系統的參數優(yōu)化試驗研究。
