1.IntroductionAs mentioned in our previous paper[1],it is important to study the phase diagram ofthe system Nb2O5-MnO-SiO2.The newcompound 4MnO·Nb2O5 has been ascer-tained in the binary system MnO-Nb2O5[1].Then,there are three stable
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机译:brechungsindices为1.84-1.87的hochbrechende光学眼镜,在sio& system中支付30-33。 dar 2和dar B& dar 2和dar o& dar 3& dar碱性氧化物-erdalkalioxid / zno pbo-la& dar 2和dar o& dar 3& dar -自己的测量值和放大器; dar 2和dar tio& dar 2和d arr; nb& dar 2和dar o& dar 5和dar