RRabbr.无线电航向信标(Radio Range-beacon);无线电接受器(Radio Receptor);阻力比(Resistance Ratio);连流继电器(Reverse Relay)
Rretrotransposon返转座子
RReading ability阅读能力
rrigation amount藿水量
Rradioprotection辐射防护
rRural good faith农村诚信
rric ferrocyanide亚铁氰化铁
Rright to privacy隐私权
Rris registration虹膜定位
rrspect of personsn.袒护(偏心)
Rresearch progress进展