这要看您用在哪方面，LRR可以理解为：Library Reading RoomLong Range RifleLaser Radiation ReceiverLow-Range ResolutionLightweight Rainfall RadiometerLaser Retro-ReflectorLong-Range RadarLow Rolling ResistanceLeucine - rich RepeatLaminated root rot,Low rolling resistance tires具体意思查查字典就知道了！
