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记者2月6日从国家管网集团获悉，该集团组织开展的国内首个长输管道改输二氧化碳现场试验顺利完成。国家管网集团研究总院新能源储运研究中心主任王维斌介绍，与新建管道相比，依托现有长输管道改造输送二氧化碳，可减少4…...
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