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电化学储能电池技术主题识别、演化及风险分析
张力菠(
), 王格格
Topic identification, evolution and risk analysis of electrochemical energy storage battery technology
Libo ZHANG(
), Gege WANG
图4.
全球及中国专利申请量变化趋势
Fig. 4.
Trends of global and Chinese patent applications