单词	使音更沈
释义	同DEEPEN
随便看	mean parallex mean parameter mean particle diameter mean particle size mean peak voltage mean-per-unit estimation mean piston speed mean piston velocity mean pitch mean place mean point of impact mean point of impact error mean point of impact {= mpi} mean polar axis mean polarizability mean pole mean position mean power mean power feedback control mean power (of a radio transmitter) mean pressure mean pressure meter mean probable error mean probit difference mean product method