Eumen.欧梅河(在西班牙)EUabbr.欧盟(=European Union)euscaphic acid“刺梨酸”Eumalacostraca真软甲类Euglena agilisn.敏捷裸藻eutric regosol饱和粗骨土euler identity欧拉恒等式eutrophieation富营养化Eulophia flavan.黄花美冠兰eugenic health优生保健Eunotia diodonn.二齿短缝藻eupteleoside A邻春木甙 A