Yahoo奇摩 網頁搜尋

  1. ...which the double bond is formed. As a result, they must be equally satisfactory representations of the molecule. Interestingly enough, neither...

    分類:科學 > 化學 2008年11月22日

  2. ...a professionally qualified chemist and you have carried out a legally satisfactory hazard assessment. Improperly done, this reaction is dangerous! ...

    分類:科學 > 化學 2005年09月01日

  3. ...same person; often however, the observations have occurred long before a satisfactory explanation for them is thought up. An hypothesis...

    分類:科學 > 化學 2006年04月06日