extracting stage

例句：

1. 1.The process of extracting oil from crude oil is complex and time-consuming.
   从原油中提取石油的过程复杂且耗时。
2. 2.During the extraction stage, the solvent is used to dissolve the solid material.
   在提取阶段，溶剂用于溶解固体材料。
3. 3.The researchers found that the best way to extract energy from renewable sources was through a combination of solar and wind power.
   研究人员发现，从可再生资源中提取能源的最佳方法是结合太阳能和风能。