... fisheries biology 渔业生物学 fisheries expert 渔业专家; 水产专家 five-membered ring 五元环; 五原子环 ...
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芳族(Aromatics), , 芳族 生物与胶体(Bioart), , 生物与胶体 仪器2(Clipaware, part 2) 仪器 五元环(Cp Rings), 五元环(Cp Rings), DNA(Templates), , 多方体(Polyhedra), , 多方体 立体异构体(Stereocenters), 立体异构体 , ..
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用新颖的干粉方法合成系列沸石的研究已从五元环沸石延伸到具有四元环和六元环的方钠石。
The family of zeolites that can be synthesized by the new dry powder method was extended from pentasil zeolites to sodalite having the structure composed of 4- and 6-member rings.
由邻位化合物生成的五元环络合物比由间位化合物形成的六元环络合物稳定性高，反应速度快。
The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.
求得可能的四种不同热解反应通道的过渡态、活化能和位能曲线，发现其热解引发步骤为五元环上侧链n—NO2键的均裂。
All transition states, activation energies and potential curves of four possible reaction paths were obtained. It was found that the homolysis of n-no2 bond in five-membered ring is the initial step.
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