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利用旋转针台法测定矿物光学常数,是把旋转针台测得矿物的一组消光数据,投影于吴氏网上,绘出矿物消光曲线及等振动曲线,进而量出等振曲线的短半径α值和长半
The optical constant of the mineral is determined by the rotary needle table method. The data of a set of extinction measured by the rotating needle table are projected on the Wu net, the mineral extinction curve and the equivalent vibration curve are plotted, and then the short radius α Value and long half