cyclopentadiene 中文意思是什麼
cyclopentadiene
解釋
茂環戊二烯-
A novel ring - enlargement oxidation of polyphenyl substituted cyclopentadienes in air ( or molecular oxygen ) promoted by perchloric acid was described, in which an oxygen atom was inserted into the cyclopentadiene - ring, forming a six - membered pyrylium salts
摘要報導了空氣（或氧氣）存在的條件下，由高氯酸引發多苯基取代環戊二烯發生新穎的碳碳鍵斷裂擴環反應，在此反應中，氧原子插人到環戊二烯環中形成相應的六元環吡喃鹽類化合物。 -
In there compounds, the cyclopentadiene ring has only four hydrogens.
在這些化合物里，環戊二烯環只有4個氫。 -
E - learning provides a friendly contact surface, a image direct - viewing learning environment, and provides the chart, the article, the sound, the picture cyclopentadiene multiple sense organ stimulating, it is advantageous to the scene establishment and the gain and maintenance of massive knowledge, it also can organizes each kind of study information and various disciplines knowledge deferring to the text and the ultra link, this is extremely advantageous to the learners ’ knowledge structure formating and the developing, also has the advantage extremely to construct the current knowledge significance, this is other learning environments is unable to achieve
E - learning能夠提供界面友好，形象直觀的學習環境，提供圖、文、聲、像並茂的多重感官綜合刺激，有利於情景創設和大量知識的獲取和保持，還能夠按照文本、超鏈接的方式組織各種學習信息和各學科知識，這非常有利於學習者知識結構的形成和發展，對當前知識的意義建構非常有好處，這是其他學習環境無法做到的。
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