De Laval oil purifier

例句：

1. 1. Our company's De Laval oil purifier is highly recommended by our customers.
   我们公司的德拉尔瓦尔油净化器受到客户的高度推荐。
2. 2. The De Laval oil purifier has been proven to be an effective way to remove impurities from oil.
   德拉尔瓦尔油净化器已被证明是一种有效的去除油中杂质的方法。
3. 3. We use the De Laval oil purifier in our factory to ensure the quality of our products.
   我们在工厂使用德拉尔瓦尔油净化器来确保我们产品的质量。