Studying the descriptive geometry course was the process of knowledge construction, which mainly included organizing knowledge unit and knowledge structure chain step by step.
画法几何学课程的学习是逐步建立知识单元和知识结构链的知识建构的过程。
A pet dog as industry is gradually formed breeding, scientific breeding, quality improvement, dog training, display competitions, dog food, dogs with, dog medicine, medical industry structure chain.
宠物犬作为产业正在逐渐形成良种繁育、科学饲养、品质改良、犬只的训练、展示比赛、犬粮、犬具、犬药、医疗的产业结构链。
The structure of interactions between organizations and individuals is no longer a sequential chain, but rather an interactive network.
机构与个人之间的互动结构已不再是一个连续链，而是一个交互式网络。
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