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【patent】The number of invention patents per 10,000 people in Pingdingshan city of Henan reached 4.078 The number of invention patents per 10,000 people in Pingdingshan city of Henan reached 4.078
【patent】The number of invention patents per 10,000 people in Pingdingshan city of Henan reached 4.078 The number of invention patents per 10,000 people in Pingdingshan city of Henan reached 4.078