请翻译成英文：为此应在以下方面做好工作例如强化技术创新对城市群绿色发展效率提升的核心驱动功能提高技术效率和规模效率对城市群绿色发展效率的贡献程度缩小城市群绿色发展效率的空间差异等

Therefore, efforts should be made in the following areas, such as strengthening the core driving role of technological innovation in improving the efficiency of green development in urban clusters, enhancing the contribution of technological efficiency and scale efficiency to the efficiency of green development in urban clusters, and reducing spatial disparities in the efficiency of green development in urban clusters.