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        UVA��⾀��L(zh��ng)��315-400nm,��͸�^(gu��)��ƌ��˵ļ��w,��

        UVB�Ǒ��⾀��L(zh��ng)��280-315nm,��˂�?c��)��?d��ng)�r(sh��)ֱ��Ƥ�w,��](m��i)�б��յ��UVA��UVB��(hu��)��䵽��棬�o�҂��ļ��w��(l��i)��,��

        UVC��⾀C��β��L(zh��ng)��200��280nm֮�g,��Ȼ��̫�(y��ng)�l(f��)��⾀C�Ύ׺�ȫ��ߌӴ��ĳ��^(gu��)�V��ˡ�UVC�܉�͸΢���(x��)��(du��)��(x��)̥�е�DNA��ɓp��,��VUC��@�@һ�c(di��n)��,��(du��)ˮ�е�΢��M(j��n)�М��UVC��Ч�Ě��,��֮��L(zh��ng)�(qi��ng)�c(di��n)��253.7nm,��

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