关于激光的英文“laser”，以下哪一项是正确的（）

A.Lightactivation by stimulation emanation of radiation

B.Luminant amplimeter by stimulation emission of radiation

C.Lightactivation by pemission of radiation

D.Luminant activation before p emission of radiation

E.Light amplification by stimulation emisssion of radiation

路基碾压时，相邻碾压轮应相互重叠20～30cm。