1. an adhesive made by dissolving unvulcanized rubber in a solvent like benzene or naphtha. 
   将不能硫化的橡胶溶于苯或石脑油等溶剂中制成的粘合剂。
2. Towngas is manufactured in plants at Tai Po and Ma Tau Kok, both using naphtha as a feedstock. 
   煤气公司位于大埔和马头角的两间厂房，负责生产煤气。
3. the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process). 
   （在石油精炼过程中）把石油重分子分解成低分子碳氢化合物的过程；把石油分子分解成更小的分子并提取低沸点的分馏部分（如汽油）的过程。

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