超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
低熔点杂质元素
low melting point element
微量杂质元素
Micro amounts of impurity-elements
zirconium alloy
trace element
minim impurity element
稀土和非稀土杂质元素
Rare Earth and Non-Rare Earth Impurity
稀土杂质元素
Rare earth impurity elements
杂质元素测定
Determination of Impurity Elements
杂质元素测定。
Determination of Impurity Element
杂质-杂质跃迁
imurity-to-impurity transition
主量和杂质元素
Main and impurities elements
本原幂等元素
primitive idempotent element