empirical formula of body

例句：

1. 1. Theempirical formula of the reaction is known tobe accurate.
   已知反应的经验公式是准确的。
2. 2. Theempirical formula of the reaction was derived fromexperiments.
   反应的经验公式是根据实验得出的。
3. 3. Theempirical formula of the reaction has been usedin many scientific studies.
   反应的经验公式在许多科学研究中被使用。