环烷基 meaning in English
cycloalkyl
naphthene base
naphthenic base
Examples
- Abstract : a series of techniques producing lube base oil developed by ripp , including the technique for production of naphthenic lube oil , high viscosity base oil from sour crude and the api group base oil with viscosity index more than 120 from hydrocracking tail oil , were introduced
文摘:介绍了石油化工科学研究院开发的一系列润滑油基础油生产技术，主要有环烷基润滑油生产的工艺技术，含硫原油生产高粘度指数基础油的技术以及加氢裂化尾油制取粘度指数大于120的类基础油技术。 - We are seeking long - term suppliers of 5 - - 22 quality machine oils , most of which are of naphthene or intermediate bases . monthly demand is about 400 tons . other demands include 32 - 100 quality machine oils and various neutral oils , which are mainly used in dispensing various special lubricating materials
我公司是一家生产变压器油为主的润滑油专业厂家，长期求购5 - - 22优质机械油，每月需求量2000吨左右，以环烷基和中间基为主，同时需求32 - 100优质机械油以及各种中性油。 - We are seeking long - term suppliers of 5 - 22 quality machine oils , most of which are of naphthene or intermediate bases . monthly demand is about 400 tons . other demands include 32 - 100 quality machine oils and various neutral oils , which are mainly used in dispensing various special lubricating materials
我公司是一家生产变压器油为主的润滑油专业厂家，长期求购5 - 22优质机械油，每月需求量2000吨左右，以环烷基和中间基为主，同时需求32 - 100优质机械油以及各种中性油。 - The neutral bio - oi1 can be separated into three fractions : the fraction washed down by cyclohexane ( c1 ) mainly contains aromatics with up to four rings ; the fraction washed down by benzene ( c2 ) mainly contains alkyl - substituted aromatic hydrocarbons and polyphenols ; and the fraction washed down by methanol ( c3 ) mainly contains ester polar components
中性油层析分离为3个馏分：环己烷洗脱馏分( c1 )主要为四环以下纯缩合化合物；苯洗脱馏分( c2 )主要由单环烷基芳烃和多酚组成；甲醇洗脱馏分( c3 )主要是酯类极性化合物。 - According to the features of naphthenic base oil ( i . e . , high nitrogen and low sulfur content ) and based upon theoretical analysis of the h2s concentration needed for phase equilibrium of nickel sulfide and tungsten sulfide in hydrogen , the most economic quantity of sulfiding agent injected into the reactor for supplement of sulfur in lube oil hydrogenation catalysts was obtained
摘要针对环烷基油高氮、低硫的特点，通过对硫化钨和硫化镍在氢气中相平衡态所需硫化氢浓度的理论分析，对反应器入口所需补硫量作了详细的阐述，得出了最经济的补充注硫量。