上述提到的产品都属于石油蒸馏物.All of the above - mentioned products fall under the category of Petroleum Distillates.这使得蒸馏物中 A:B 比率发生缓慢的变化.This results in a slowly changing ratio A : B in the distillate....

“蒸馏物”的英语可以翻译为：distillate，distillation，runnings ...