paraffin method

例句：

1. 1. The paraffin method is used to remove impurities from oil.
   石蜡法用于从油中去除杂质。
2. 2.In the paraffin method, the sample is heated and then cooled rapidly.
   在石蜡法中，样品被加热然后迅速冷却。
3. 3. The paraffin method is often used in the petroleum industry for refining purposes.
   石蜡法通常在石油工业中用于提炼目的。