爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.Alkyl aromatic compounds in surface sediments from Bransfield Strait, Antarctica
南极布兰斯菲尔德海峡表层沉积物烷基芳烃化合物收藏指正
2.Five fractions of tar produced from Lurgi pressurized coal gasification were separated and analyzed by using glass capillary chromatography atnd gas chromato-graphy-mass spectrometry. 197 constituents including alkyl and aromatic hydrocarbons and compounds containing O, N and S have been identified.
采用玻璃毛细管色谱和气相色谱-质谱联用技术,分离、分析鲁奇法焦油(Ⅰ)(<330℃)的五个馏分,一共鉴定出197个组分,其中包括各种肪脂族、芳香族烃类以及含O,N及S的化合物。收藏指正
3.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。收藏指正
4.are estimated along with the important structural parameters such as aromatic (URA) and naphthenic (URN) ring numbers of the unit sheet and alkyl substitutions on aromatic (DSA) and naphthenic (DSN) and bridges,etc.
结构参数包括单元芳环片环数、单元环烷环片环数、芳环上烷基取代度、环烷环上烷基取代度、桥链数等。收藏指正
尝试查询
汉英释义