Abstract:

From the perspectives of manufacturing structural transformation, technological diffusion mechanisms, and capability-transition dynamics, this paper analyzes the theoretical foundation and intrinsic connections between maintaining a rational proportion of manufacturing, advancing the "threefold integration" of intelligentization, greening, and integration, and building an advanced manufacturing sector. The structure of manufacturing determines both the speed and magnitude of changes in its share of the economy; the essence of a rational proportion lies in achieving an appropriate scale grounded in a reasonable structure. Scale and structure reinforce each other: scale provides the foundation for technological accumulation, while a reasonable structure ensures the sustainability of scale. Moreover, the inherent by-product characteristics of many rare materials-crucial to modern intelligent and green industries-require a corresponding level of manufacturing scale to guarantee stable supply.In the digital era, technological diffusion is characterized by shortened cycles, strengthened ecological coordination, and prominent indirect network effects. Integration therefore becomes the key pathway for effectively implementing intelligentization and greening. Together, intelligentization, greening, and integration form a self-reinforcing system of "technology-boundary-carrier." China is currently at a critical juncture, transitioning from related diversification toward unrelated diversification. Against the backdrop of accelerating accumulation of complex technological capabilities, China must maintain a solid manufacturing scale, strengthen technological diffusion, and expedite the construction of an advanced manufacturing system, thereby achieving a structural leap from quantitative expansion to qualitative upgrading.

Key words: advanced manufacturing, rational proportion of manufacturing, intelligentization, greening, integration