单环芳香烃 meaning in Chinese

monocyclic aromatics
mononuclear aromatics

Standard test method for trace impurities in monocyclic aromatic hydrocarbons by gas chromatography and external calibration
用气相色谱法和外部校准法对单环芳香烃中微量杂质的标准试验方法
Water quality - gas - chromatographic determination of a number of monocyclic aromatic hydrocarbons , naphthalene and several chlorinated compounds using purge - and - trap and thermal desorption
水质.通过purge - and - trap及热解吸作用对单环芳香烃奈和不同氯化物的气相色谱测定
Water quality - gas - chromatographic determination of a number of monocyclic aromatic hydrocarbons , naphthalene and several chlorinated compounds using purge - and - trap and thermal desorption
水质.使用purge - and - trap和热解析作用对单环芳香烃萘和不同氯化物的气相色谱分析测定