Under ultra high vacuum condition, the adsorption of oxygen and ethylene on electrolytic silver containing barium was studied by mass spectroscopy and work function change measurement.
在超高真空条件下用热脱附和功函数变化等方法研究了氧在银-钡催化剂上的吸附和反应。
This article introduced the usual terms of grain size, measurement and production control for high -purity barium carbonate. it also presented some measures to control grain size in the production.
介绍了高纯碳酸钡的常见粒度表述术语，评价方法与生产控制手段，为高纯碳酸钡生产中的粒径控制提供了多条途径。
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