yttrium oxide
yttrium-oxide的词性:n.(名词)
1. A yellowish powder, Y2O 3, used in optical glasses, ceramics, and color-television tubes. Also called yttria 氧化钇:一种淡黄色粉末,Y2O 3,用于光学镜、陶瓷和彩电显像管中 也作 yttria