Catalyst for promoting conversion of high-boiling hydrocarbons into lower-boiling types in catalytic cracking process.
在催化裂化过程中为促进高沸点烃类转化成低沸点烃类所用的催化剂。
2
In centigrade, your temperature is 39℃, which is a bit high, but not exactly boiling point.
你39℃摄氏度的体温是有点高，但完全没达到沸点呢。
3
The petroleum is first heated in a boiler to separate the smaller hydrocarbons with low boiling points from the larger hydrocarbons with highboiling points.