Publication date: 10 March 2026
相比企业数量，研发人员的总数扩张更快，从2021 年度的273.91 万人增加41.78%至388.35万人。不过，研发人员的增长数量在2023 年度之后却逐年递减，增幅依次为39.06 万人、26.62 万人和13.37 万人，折射出研发人力布局从“量”向“质”的过渡。
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A low threshold preserves detail (more leaf nodes, less compression). A high threshold merges aggressively (fewer leaves, more compression, but the image gets blocky). The grid overlay shows the quadtree structure: large cells in uniform areas, small cells where detail is preserved.