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wolframite n.【礦物】黑鎢礦,鎢錳鐵礦。

wolframium

Is a hard , brittle , corrosion - resistant , gray to white metallic element extracted from wolframite , scheelite , and other minerals , having the highest melting point and lowest vapor pressure of any metal 顏色呈灰色或棕黑色,硬度高,延性強,熔點極高,常溫下不受空氣侵蝕主要用途是制造燈絲和高速切削合金鋼,各種鎢電極,也用于光學儀器,化學儀器方面。

Abstract : the development of main mineral processing technologies of wolframite and scheelite are presented in the paper 文摘:分別介紹了黑、白鎢選礦工藝主要技術進展情況。