Roiu罗尤
ROabbr.雷达操作人员(=Radar Operator)abbr.雷达测距器(=Range Roly)
Rouchester Row罗彻斯特街(伦敦一街名)
ro-ro vessel滚滚式集装箱船; 车辆开上开下船; 驶进驶出装运船
Rojo Alicante'
rograde return逆行返回
roidal reactor环状堆
Rogowskii coil罗哥斯基线圈
Roussin's test
roving archery任意射箭
Roxit hromycin罗红霉素
Roise reducing降噪