单词	氚定年
释义	氚定年tritium dating
随便看	luminous bacteria--luminescent bacteria-- photogenic bacteria luminous bacteria; luminescent bacteria; photogenic bacteria luminous beacon luminous bean luminous body luminous buoy luminous capacitor luminous carbon arc lamp luminous ceiling luminous ceiling lighting luminous center luminous cloud luminous coefficient luminous colour luminous crystal luminous density luminous dial luminous diode luminous discharge luminous discharge lamp luminous discharge tube luminous effect luminous efficacy luminous efficacy [of a lamp] luminous efficacy[of a lamp]