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

用光光度比吸收系数法进行环戊噻嗪百含量测定方法的。

Based on the result of theoretical research the absorption coefficient curve of a substrate material has be ound,which ensure the three-channel BCCD work in the region of X-ray.

通过理析，找出能保证BCCD在X光区工作的衬底材料所应满足的吸收曲线。

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

系统地绿光吸收系数对于生长气氛和源棒浓度的依赖关系。