[ Instrument Network Instrument R & D ] Exploring the second type of Weir semi-metallic materials and studying the singular physical properties of them is one of the areas that have received extensive attention in the research of topological quantum physics. The theory pr…

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[ China Instrument Network Instrument Research and Development ] China has a long coastline and a developed coastal economy. The seas adjacent to the mainland and islands are vast and rich in resources. With the implementation of the maritime powers and the “One Belt, O…