Warning: file_put_contents(): Only 0 of 6731 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55 rare-earth element er是什么意思，rare-earth element er的翻译，rare-earth element er音标、读音、用法和例句_菜篮子兴趣思朗文词典
New types 'of ceramic photochromic pigments doped with Er-oxide and other rare--earth or transition element oxides were prepared. 用铒氧化物并添加其它稀土氧化物及过渡金属氧化物合成出了新型陶瓷光致变色颜料。