high-boiling fraction是什么意思

用法例句

Adjust operating parameters of high boiling point tower and optimize chlorethylene production process;

调整高沸塔操作参数 优化氯乙烯生产过程

A liquid chromatography method determination of phenol and high-boiling components in bisphenol A process is investigated.

研究了一种用液相色谱法测定双酚A物料中苯酚和高沸点物含量的方法。

Application of high-boiling residues;

有机硅高沸物综合利用概况