随着全球经济一体化进程的加快,世界经济呈现出持续较快增长的态势,各国对油气资源的需求日益旺盛,争夺亦日趋激烈,世界范围内的油气管道已经进入新一轮的建设高潮。在可以预见的五年内,世界范围内规划和在建的管道将超过20万公里,这 With the acceleration of global economic integration, the world economy has shown a trend of sustained and rapid growth. As the demand for oil and natural gas resources in various countries is on the rise and the competition is fierce, the oil and gas pipelines in the world have entered a new upsurge of construction. In the foreseeable five years, the world’s planning and construction of the pipeline will be more than 200,000 km, which