单词protoplanetary-disk
网络: 原行星盘；原行星旋转盘面；原始行星云盘
He says proving the presence of phyllosilicates in a protoplanetary disk is a challenge.
他说：在原形星盘的确认层状硅酸盐的存在有一个很大的挑战。
The Spitzer data showed whether the young stars have a so-called "protoplanetary" disk around them.
斯皮策的数据则显示出这些年轻恒星是否有所谓的“原行星”盘环绕着他们自己。