Praseodymium oxide - determination of lanthanum oxide , cerium oxide , neodymium oxide , samarium oxide and yttrium oxide contents - x ray fluorescence spectrometric method 射线荧光光谱法测定氧化镨中氧化镧氧化铈氧化钕氧化钐和氧化钇量
Cerium and cerium oxide - determination of lanthanum oxide , praseodymium oxide , neodymium oxide , samarium oxide and yttrium oxide contents - emission spectrographic method 发射光谱法测定金属铈及氧化铈中氧化镧氧化镨氧化钕氧化钐和氧化钇量
Neodymium and neodymium oxide - determination of lanthanum oxide , cerium oxide , praseodymium oxide , samarium oxide and yttrium oxide contents - emission spectrographic method 发射光谱法测定金属钕氧化钕中氧化镧氧化铈氧化镨氧化钐和氧化钇量
Neodymium and neodymium oxide determination of lanthanum oxide , cerium oxide , praseodymium oxide , samarium oxide , yttrium oxide contents - x - ray fluorescence spectrometic method 射线荧光光谱法测定金属钕和氧化钕中氧化镧氧化铈氧化镨氧化钐和氧化钇量
The availability of high performance magnets , like samarium cobalt and neodymium - boron - iron , has made it possible to improve the performance of brushless dc motors significantly 高性能的永磁体如钐钴、钕铁硼的问世使得永磁无刷直流电动机的性能大大提高了。
