高斯公式法补面,这里的投影零点分段法化简绝对值具体步骤,是怎么化出ay^2的。

ChemInform Abstract: Conversion of a 1,2,3-Dithiazole into a 3H-Pyrrole-3-thione and a 3H-Pyrrol-3-ylidenephosphorane. - KOUTENTIS - 1999 - ChemInform - Wiley Online Library
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ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a &Full Text& option. The original article is trackable via the &References& option.ChemInform Abstract: A Tandem Horner-Emmons Olefination-Conjugate Addition Approach to the Synthesis of 1,5-Disubstituted 6-Azabicyclo(3.2.1)octanes Based on the AE Ring Structure of the Norditerpenoid Alkaloid Methyllycaconitine. - CALLIS - 1996 - ChemInform - Wiley Online Library
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ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a &Full Text& option. The original article is trackable via the &References& option.Before Your Pregnancy: A 90-Day Guide for Couples on How To Prepare For a Healthy Conception - Nasso - 2003 - Birth - Wiley Online Library
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No abstract is available for this article.ChemInform Abstract: Synthesis and X-Ray Structural Characterization of Novel Binuclear Complexes of Copper(II), Nickel(II), and Cobalt(II) with an Octadentate Ligand, N,N&,N&,N&&-Tetrakis(2-aminoethyl)-1,4,8,11-tetra-azacyclotetradecane. - MURASE - 1986 - ChemInform - Wiley Online Library
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Starting with cyclam (I) the title ligand (IV) was prepared as its octahydrobromide (95% yield) according to the scheme and isolated in its free form by passing it through a column of anion-exchange resin (yield almost quantitative).

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