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新型数字基础设施如何影响对外贸易升级--来自中国地级及以上城市的经验证据
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- Economic Science / Jingji Kexue, 2020, v. 42, n. 3, p. 46, doi. 10.12088/PKU.jjkx.2020.03.04
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TiO<sub>2</sub>对琼胶-κ-卡拉胶膜性能的影响.
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- Acta Materiae Compositae Sinica, 2018, v. 35, n. 12, p. 3450, doi. 10.13801/j.cnki.fhclxb.20180209.006
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- Article