naphthenic hydrocarbon
英
美
网络 环烷烃
双语例句
- In the oil and gas wells in Sichuan Basin, the percentage of naphthenic hydrocarbon gradually decreased while the normal alkane and isoalkane increased from deep to surface.
四川盆地油气井中自深至浅，环烷烃百分组成逐渐降低，正构和异构烷烃不断增加； - To keep the qualified viscosity of HVI 200 lube base oil, the concentration of polycyclic naphthenic hydrocarbon in vacuum distillation cut 2 must be reduced.
为保证HVI200基础油粘度指数合格，要降低减二线馏分中多环环烷烃含量。 - Determination of satisfied and naphthenic hydrocarbon in heavy oils by gas chromatography
气相色谱法分析重质油中的饱和烃加环烷烃馏分