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THE VIRTUAL LONG-RANGE COUPLING IN THE ~1HNMR SPECTRA OF 1-O-ACYL-TETRA-O-ACETYL-β-D-HEXAPYRANOSE: 《Chinese Science Bulletin》1991年第22期1911-1915,共5页余诚方蔡盂深江忝益张志亮; Since the study of the nuclear magnetic resonance （NMR）spectra of a number of sixmembered ring compounds reported by Lemieux et al. in 1958, the chemical shift and coupling constant for H₁ have been used ...; 关键词：two-dimensional NMR spectrum VIRTUAL LONG-RANGE coupling anomeric ISOMER

THE OBSERVATION STUDY OF 3—5-YEAR CYCLE IN NORTHERN HEMISPHERE 500 hPa HEIGHT FIELD: 《Chinese Science Bulletin》1990年第5期415-419,共5页林学椿; In recent years, many works show that there is 3—5-year quasicycle fluctuation in the tropics and the subtropics. The fluctuation relates to the southern oscillation, so it is defined as SO period.; 关键词：INTERANNUAL change of atmospheric CIRCULATION OCEAN-ATMOSPHERE interaction LONG-RANGE WEATHER forecasting.

A STUDY OF LONG-RANGE PREDICTION OF THE NUMBER OF FIRST GENERATION ARMYWORM IN LINYI AREA WITH SEA TEMPERATURE DATA: 《Chinese Science Bulletin》1985年第1期108-113,共6页赵圣菊; Armyworm is a major injurious insect to grain in our country. There are many factors influencing the happening of armyworm, and its process is complex, so the methods used to predict the happening of armyworm must be ...; 关键词：winter WEATHER wheat diverse predicting FIRST ELIMINATION Correlation AUTUMN fitting

APPLICATION OF GEOPHYSICAL FACTORS TO LONG-RANGE WEATHER FORECASTS: 《Chinese Science Bulletin》1983年第7期930-936,共7页彭公炳司有元陆巍; It has been demonstrated in our previous works that geophysical factors, including movement of earth pole and the variation of the earth rotation velocity, are of certain importance in determining atmospheric circulat...; 关键词：GEOPHYSICAL rotation applying determining Probability YANGTZE ABSOLUTE WEATHER false FORECAST

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