Uses: as the raw material of manufacturing europium oxide.用途: 用作氧化铕的原料.Europium and terbium rare earth complexes with tetracarboxylic acid were successfully prepared in aqueous solution.摘要在水溶液中合成了铕和试的四元羧酸稀土配合物.The comple...
劳拉松开离合器踏板，沿车道慢慢驶离。Laura let out the clutch and pulled slowly away down the drive.M4号高速公路西向车道车流行驶缓慢。Traffic is slow on the westbound carriageway of the M4.我转入2号公路东向车道。I pulled out into the eastbound lane of Route 2....