Rhumn.拉姆岛(在英国)RHabbr.右手（=right hand）abbr.相对湿度（=Relative Humidity）Rheotron viscometer雷奥特隆通用黏度计Rhizosolenia indican.印度根管藻Rhizosolenia clevein.克氏根管藻rhein-diglucoside大黄酸双葡糖甙Rhynchocyon petersin.黑象鼩rhizobium formation根瘤菌形成Rhabdomonas costatan.肋杆胞藻Rhyparida formosanan.台湾亚澳肖叶甲rhenium oxychloride氯氧化铼rhizospherebacteria根际细菌