unblended oil

例句：

1. 1.The unblended oil was a mystery to the scientists.
   这种未混合的油对科学家们来说是一个谜。
2. 2. The unblended oil is used in the production of biofuels.
   这种未混合的油用于生物燃料的生产。
3. 3. The unblended oil has a higher viscosity than refined oil.
   这种未混合的油比精炼油黏度更高。