The geographic location, navigation conditions, geological conditions, design standards, structural type and calculation method of Zhengbukou Junction Shiplock are briefly introduced.
简单介绍郑埠口枢纽船闸的地理位置、通航条件、地质情况、设计标准、结构型式和计算方法。
At the junction where the two layers meet, electrons pair up with holes, establishing an electric field that prevents electrons from moving from the n-type material to the p-type.
两层接触处电子与“孔”便成双配对地形成了电场，阻止电子从n层移到的p层。
Shanghai Xujiahui junction station is the only large type transfer junction station of 3 urban lines in the network of Shanghai rail traffic.
轨道交通徐家汇枢纽是上海市轨道交通网络中唯一的一个3条市域线交汇的大型换乘枢纽。
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