结构转型：跨越高质量发展门槛：cross the threshold of high-quality development cross the threshold of high-quality development Cross the threshold of high-quality development Structural transformation：cross the threshold of high-quality development：跨越高质量发展门槛 Craftsmanship under the background of high-quality development Embarking on the pathway of high quality development U形曲线：高质量发展的底层逻辑：the underlying logic of high-quality development 区域一体化：高质量发展有效路径：an effective pathway for high-quality development 动力变革：推动高质量发展的历史跨越：a historic leap-forward to high-quality development