| 1. | A plural society is one composed of numerous races 一个多元社会是一个由多种族组成的社会。 |
| 2. | Method for hydrocarbon types analysis of gasoline by mass spectrometry 汽油族组成质谱分析方法 |
| 3. | Chemical group composition 汽油的化学族组成 |
| 4. | Method for aromatic types analysis of gas - oils aromatic fractios by mass spectrometry 重馏份石油芳香烃族组成质谱分析方法 |
| 5. | Method for hydrocarbon types analysis of gas - oil saturates fraction by mass spectrometry 重馏份石油饱和烃族组成质谱分析方法 |
| 6. | Analysis of hydrocarbon group composition of light crude oil by capillary gas chromatography 毛细管气相色谱法分析轻烃族组成 |
| 7. | Group compositions of cs2 - soluble fractions from vitrinite and resinite of fushun coal and extraction 2可溶物的族组成和萃取 |
| 8. | Group composition and extraction kinetics of benzene methanol - soluble fractions from two guizhou coal 甲醇萃取物族组成分析与萃取动力学探讨 |
| 9. | Standard test method for determination of hydrocarbon types composition in gasoline by multidimensional gas chromatography 汽油中烃族组成测定法多维气相色谱法 |
| 10. | Test method for calculation of carbon distribution and strutural group analysis of petroleum oils by the n - d - m method 石油馏分的碳分布和结构族组成计算方法n - d - m法 |