RITLn.无线用户环路RITabbr.渐慢（=ritardando）Ritchie photometer劈片光度计, 里特契(氏)光度计Ritter-Valli law[医] 里-瓦二氏定律Rittinger's theoryRitter-Rollet sign[医] 里-罗二氏征(弱电刺激足屈, 强电刺激足伸)ritght sursumduction右眼上转Ritchie's photometerRitchie sedimentation里奇沉淀作用, 福尔马林-醚沉淀作用Ritchey-Common test瑞奇-康芒检测RITL Radio In The Loop回路无线通信Ritter Von Joseph Haas