The painting had been executed with meticulous attention to detail.画这幅画的时候，画家非常注意细节。The whole cast executed the production with truly professional aplomb.全体演职人员以一种真正的专业精神，从容不迫地开始了影片的制作。A well-executed shot of a tall ship...
用途: 用作氧化铕的原料.Uses: as the raw material of manufacturing europium oxide.采用电解的方法将三价铕还原成二价.It is to reduce Eu 3 + into Eu 2 + with electrolyzation method.用途: 作提取钐. 铕. 0单一氧化物的原料.USES: As raw material in extracting single oxi...