solvent extraction process

例句：

1. 1. Solvent extraction is a widely usedmethod for removing impurities from crudeoil.
   溶剂萃取是一种广泛用于从原油中去除杂质的方法。
2. 2. The solvent extraction process is crucialin the production of pharmaceuticals.
   溶剂萃取工艺在制药生产中至关重要。
3. 3. The solvent extraction process has been optimizedto improve efficiency and reduce costs.
   已优化的溶剂萃取工艺提高了效率并降低了成本。