gastraea theory

例句：

1. 1. The gastraea theory has been widely accepted by scientists.
   气体理论已被科学家广泛接受。
2. 2. The gastraea theory explains the behavior of gases in a simple and intuitive way.
   气体理论以简单直观的方式解释了气体的行为。
3. 3.The gastraea theory has been usedto study the properties of various gases.
   气体理论已被用来研究各种气体的性质。