从区际经济关系看，我国沿海与内地经济合作具有巨大潜力。目前，我国沿海与内地经济发展水平形成了一定梯度，二者的优势有很大的互补性，为区际经济技术合作提供了良好基础。总体来看，目前沿海发达省市经济发展水平领先中部地区5年以上，领先西部地区则在10年以上；沿海具有 From the perspective of interregional economic relations, the economic cooperation between our coasts and the Mainland has great potential. At present, the level of economic development in China’s coastal areas and the Mainland has reached a certain gradient. The two have great complementarities and provide a good foundation for regional economic and technological cooperation. Overall, at present, the developed coastal provinces and municipalities lead the economy in the central region for more than five years and the leading western regions for more than 10 years. The coastal areas have