The source, influence and control of the impurity elements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源，影响及控制方法。
2
The source, influence and control of the impurity dements in samarium are described in this paper.
本文在实验的基础上论述了钐中杂质的来源，影响及控制方法。
3
The growing solution of DKDP crystal was synthesized firstly, then the source and possible introducing method of impurities were discussed by the measurement of metal ion impurity concentrations.