substoichiometric compound

例句：

1. 1. The ratio of carbon to hydrogen in the compound is substoichiometric.
   化合物中碳与氢的比率是化学计量比。
2. 2.In chemical engineering, understanding substoichiometric reactions is crucial for process optimization.
   在化工工程中，理解化学计量反应对于过程优化至关重要。
3. 3. The substoichiometric reaction is a key factor in determining the stability of a material.
   化学计量反应是决定材料稳定性的关键因素。