... high boiling hydrocarbons 高沸点烃类 high boiling solvent 高沸点溶剂 high bottom 厚罐底沉淀层 ...
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The petroleum is first heated in a boiler to separate the smaller hydrocarbons with low boiling points from the larger hydrocarbons with high boiling points.
石油先在一蒸发器内加热，从高沸点的大分子碳水化合物中分离出低沸点的小分子碳水化合物。
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。
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