propionic ester

例句：

1. 1. This propionic ester is used as a solvent in the production of plastics.
   这种丙酸酯用作塑料生产的溶剂。
2. 2.The propionic ester was found to have antibacterial properties.
   研究发现这种丙酸酯具有抗菌性质。
3. 3.In the chemical industry, propionic esters are commonly used as intermediates for producing various chemicals.
   在化学工业中，丙酸酯常被用作生产各种化学品的中间体。