From an industrial value chain perspective, the Northern and Southern Coastal regions encompass industries spanning high, medium, and low levels, with an increasing trend of advanced regions (e.g., Beijing and Guangdong) transferring medium- and low-end industries to neighboring or related regions (e.g., Hebei and Hainan).
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Spatiotemporal disparities and dynamic transition characteristics of China's national standard development contribution levels-Based on machine splitting and location assignment technology.
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