dust-cloud hypothesis

例句：

1. 1. The scientist proposed a dust-cloud hypothesis to explain the phenomenon.
   科学家提出了一个尘埃云假说来解释这一现象。
2. 2.The theory of dust-cloud hypothesis is still under debate among experts.
   尘埃云假说的理论在专家之间仍存在争议。
3. 3.The discovery of dust-cloud hypothesis has sparked a new era in space exploration.
   尘埃云假说的发现为太空探索开启了新的纪元。