protostellar disk

例句：

1. 1. The study of theprotostellar disk is crucial forunderstanding the early stages of star formation.
   研究原恒星盘对于理解星形成初期至关重要。
2. 2.The protostellar disk isa region where stars form in the earlystages of their evolution.
   原恒星盘是恒星在其演化初期形成的区域。
3. 3. The discovery ofthe protostellar disk hasshed new light on the process of starformation.
   发现原恒星盘为恒星形成过程提供了新的见解。