solvent process

例句：

1. 1. Solvent processes are used to remove impurities from crude oil.
   溶剂过程用于从原油中去除杂质。
2. 2.The solvent process is a key step in the production of pharmaceuticals.
   溶剂过程是制药生产过程中的关键步骤。
3. 3. The solvent process has been shown to be more efficient than traditional methods.
   研究表明，溶剂过程比传统方法更高效。