魏碑心思朗文词典

RR

魏碑心思朗文词典

剑桥词典

    RR (TRAIN)


    written abbreviation for railroad noun
    鉄路，鉄道（railroad的縮寫）

    RR (POST)


    written abbreviation for rural route : used in addresses in some areas in the US
    鄕村郵件投遞路線（用於美國鄕村地區通信地址中，rural route的縮寫）

    RR (BREATHING)

    medical   specialized
    written abbreviation for respiratory rate (= the rate at which someone breathes in and out)
    呼吸頻率（respiratory rate的縮寫） 返回 RR