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beta ray 【化學】β射線。

beta test

The jixi ' s fluorite was irradiated by beta rays in order to find the thermoluminescence characteristics of this fluorite 摘要安徽績溪螢石對射線照射有良好的熱釋光響應。

Air quality . measurement of the concentration of solid particles in ambient air . beta ray absorption method 空氣質量.周圍空氣中固體微粒濃度的測定.射線吸收法

Beta ray teletherapy 射線遠距治療

Beta ray thickness gauge 射線測厚規

Beta ray extracorporeal irradiator 射線體外輻照器