asphaltene fraction

• 分离

asphaltene fraction的用法和样例：

例句

1. Centrifuging, washing, and filtering may separate any fraction of polymer that occurred by an emulsion process.
   离心，洗涤，和过滤可以分离乳液法制得的任何级分的聚合物。
2. The benzene fraction from Pyramidomonas delicatula had the strongest antimicrobial activities against Pyricularia oryzae of all the elution fractions.
   在各分离组分中，娇柔塔胞藻的苯洗脱组分对稻瘟病菌的抗菌活性最强。