The content related to purification technique for sodium is discussed. It includes impurity concentration, purification theory, clod trap, efficiency, regeneration and so on.
本文叙述了与钠净化技术有关的内容，包括钠中杂质浓度、净化理论、冷阱效率和冷阱再生等问题。
With increasing doping concentration, the impact of neutral impurity scattering becomes more significant.
随着掺杂浓度的增加，中性杂质散射作用增强。
The concentration of impurity and defects in the crystals decreased dramatically, and the capability of irradiation-resistant improved synchronously as the increase of re-crystallization times.
随着再结晶次数的增加，晶体中的杂质浓度和缺陷浓度明显降低，晶体的耐辐射性能明显提高。
The influences of phosphoric acid quality on the production of DAP are discussed from such 3 aspects as the concentration of phosphoric acid, impurity and temperature.
从磷酸浓度、杂质含量、温度3个方面分析磷酸质量对磷酸二铵生产造成的影响。
Analysis focuses on the reason for impurity concentration in closed-cycle nitrogen-water precooling system of air separation unit. The solution to this problem is also presented.
分析了空分设备闭式循环氮水预冷系统杂质浓缩的原因，提出了处理措施。
At the late period of growth of colloidal particles, the concentration of donor atoms can be approximately represented by the critical concentration of impurity.
在胶粒生长后期，施主原子浓度可以近似地用杂质临界浓度表示。
Conclusion After impurity removal and concentration by two kind of membrane, Yinhuang medicinal broth lose a little ingredient, so the selection of membrane system is reasonable.
结论银黄水煎液经两种膜除杂、浓缩后，整体成分损失少，膜系统选择合理。
From such 3 aspects as temperature, concentration and impurity, the corrosion causes of stainless steel in WPA are discussed for the selection of materials.
从温度、浓度和杂质3个方面，介绍不锈钢在湿法磷酸中的腐蚀原因。针对这些因素，介绍了选材的原则。
The interference effects of matrix element Fe and high concentration elements Nd, Dy, Co, B on impurity elements were studied.
研究了基体元素铁、主量元素钕、镝、钴、硼对杂质元素的光谱干扰情况；
A series of general formulae of impurity concentration distribution along the ingot after point-doping zone melting has been derived.
得到了点掺杂区熔后杂质沿锭长分布的一系列普遍公式。
When the concentration of impurity is greater than the actual scale of the peak.
当杂质含量超过峰实际量程的时候。
The variation of the sawtooth activity is mainly related to the impurity concentration.
杂质聚中是锯齿活性变化的主要原因。
The results show that the residual resistance ration relates not only to the aging temperature and the impurity concentration of the metal, but also to the aging time.
结果表明：金属铍的剩余电阻比不仅与时效温度和金属内杂质的浓度有关，而且受时效时间的影响；
When the concentration of impurity is greater than the Alarm 1 for the peak.
当杂质含量比峰值报警1要大时。大于比“…
When the concentration of impurity is greater than the Alarm 1 for the peak.
当杂质含量比峰值报警1要大时。大于比“…
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