... 凿吸型;炉吸型 rasping-sucking type 族环 rassenkreis; race cycle 羽鳃鲐(属) Rastrelliger ...
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以双环戊二烯等为原料合成一种新型三官能团液体脂环族环氧树脂。
Started from dicyclopentadiene, a novel, liquid, trifunctional cycloaliphatic epoxide resin was synthesized and characterized.
报道了通过串联环加成芳构化反应合成多取代芳族化合物的方法。
The synthesis of polysubstituted aromatic compounds by using a tandem cycloaddition aromatization reaction was reported.
师生关系为元代“多族士人圈”中具有重要意义的一环。
The master-disciple relationship forms an important link in the multi-ethnic networks of the Yuan dynasty literati.
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