单词学习：protoplanetary disk 天文学/天体物理学
protoplanetary disk
/ˌproʊtoʊˈplænɪteri dɪsk/
原行星盘
Gu Laoshi explained that a protoplanetary disk is a rotating disk of dense gas and dust surrounding a young star, where planets are believed to form.
顾老师解释说，原行星盘是围绕年轻恒星旋转的稠密气体和尘埃盘，据信行星在此形成。
单词卡片
卡片已就绪
