中文说明：rayleigh with N. you can change the #of N-rayleigh with N. you can change the#of N
English Description：
rayleigh with N. you can change the#of N
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中文说明：rayleigh with N. you can change the #of N-rayleigh with N. you can change the#of N
English Description：
rayleigh with N. you can change the#of N