单项选择题
A.热效应 B.压强效应 C.化学效应 D.强电场效应 E.机械效应
A.光致压强效应 B.光致化学效应 C.光致强电场效应 D.光致裂变效应 E.光致热效应
A.方向性强 B.相干性好 C.穿透性强 D.单色性好 E.极化性高
A.Lightactivation by stimulation emanationofradiation B.Luminant amplimeter by stimulation emission of radiation C.Light activation by strong emission of radiation D.Luminant activation before strong emission of radiation E.Light amplification by stimulation emisssion of radiation
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