Decalescence point是什么意思

用法例句

Results showed the emission spectra have two broad bands peaked at 455 and 515 nm and the afterglow decay is in proportion to t-0.

结果表明:SrAl2O4∶Eu,Dy长余辉发光玻璃的发射光谱存在455,515nm两个发射峰值,并且其余辉衰减正比于t-0。