2025-06-23 00:34 | 0 阅读 The Delta Connection: How Shanghai and Neighbors Are Redefining Regional Development [The Megaregion Blueprint]Shanghai's "1+8" metropolitan zone now anchors a 220,000 sq km economic engine producing:• 24% of China's GDP• 28% of total exports• 35% of R&D investment• 22 cross-province industrial chains[Transportation Revolut