余辉特性 meaning in Chinese

light-decay characteristic
persistence characteristic

Study on the long - lasting phosphorescence of sral2o4 : eu : dy at low temperature
荧光材料的低温余辉特性研究
The influence rule of y2c > 2s : eu , mg , ti long - persistent phosphor fluorescent properity and luminesce intensity is studied with the changing of concentration of mg , ti
研究了不同的mg ， ti掺杂量对y2o2s - eu ， mg ， ti磷光体发光强度和余辉特性的影响规律。