单词	县推广员
释义	县推广员County extension agent
随便看	decibels decibels above 1 volt decibels above 1 watt decibels above reference coupling decibels above reference noise decibels adjusted decibel scale decibels {=db} decibels related to dipole antenna decibels relative to carrier decibels relative to isotropic radiator decibels relative to one millivolt decibels relative to one milliwatt decibels relative to one millwatt decibels relative to one millwatt{=dbm} decibels relative to one watt decibels relative to one watt{=dbw} decibels relative to reference level decibels with a reference of 1 v decibels with a reference of 1 v {=dbv} decibels with reference to one kilowatt decibels with reference to one milliwatt decibel unit decibel，db decibel｛=db｝