Here is a 50-100 word summary of 龙岗山滑雪场（规划）: The Longgang Mountain Ski Resort project is a large-scale ski resort development in Fushun, Liaoning Province, China. The project covers an area of approximately 700.16 hectares, with a planned investment of 21.7 billion yuan and a construction period of 32 months. The resort will feature 17 ski trails, a snowmaking system, and supporting infrastructure such as roads, water supply, and electricity. The project aims to create a world-class ski resort that can host international events, including the 15th National Winter Games.