The Determination of Cyclopenthiazide by using the ratio absorption coefficient in UV-spectrophotometer was studied.

用紫外分光光度比吸收系数法进行环戊噻嗪百分含量测定方法的研。

A new method of measuring the ratio of thermal emission rate to the photoexcitation constant is presented.

吸收系数强度特性条件下一种测量热激发速率与光激发常数比值的新方法。

Dependance of green absorption coefficients on growth atmosphere and source rod concentration has been symmetrically investigated.

系统地研绿光吸收系数对于生长气氛和源棒浓度的依赖关系。