摘要：为克服传统甲醇合成工艺单程转化率低、循环比大、能耗高等缺点，日本东洋工程公司和三井东压化学公司共同开发出一种新型节能降耗的多段内冷式径向流动（Muhi-stageindirect-cooling type Radial Flow，简称MRF）甲醇合成塔眩塔技术成熟、结构紧凑、操作方便、机械性能可靠．生产能力为2500t／d，商径4700ram，高度14100mm，重量420t，

摘要：After illustration of research and development process of sightseeing agricultural park,the paper had classified sightseeing agricultural park into sightseeing agricultural park,education agricultural park and agricultural garden in terms of development content;into renovation type and newly-built type in accordance with development mode;and into plain type and mountainous type in the light of *** the perspectives of terrain,vegetation,hydrology and ecology,characteristics of landscape resources in mountainous sightseeing agricultural park were *** proposed principles for planning and design of mountainous sightseeing agricultural park,which were respecting and protecting nature,linking landscape units and coordinating spatial structure,systematicness and protecting inheritance of traditional *** this basis,it had illustrated landscape designing theories on architecture and landscape furniture,traffic road,plant greening and water supply and sewerage works.