raton.火箭助推起飞(起飞辅助火箭)
ratn.变节者;鼠;卑鄙的人v.捕鼠;背叛;偷窃
ratafee leaven果酒酵母
ratooning crop再生稻
Ratufa affinisn.斑臀巨松鼠
rating of land土地定级
Rattus tunneyin.滕氏家鼠
Rathke's tumor拉哈夫,是以色列制造的潜艇
rat lung strip鼠肺条
Rat-Kangaroo蹼, 鼠袋鼠
Rat islet cell大鼠
Rattus coxinga向腹鼠