沐鸣22登录_西气东输年输气量首超千亿立方米，投产以来累计输送逾7000亿立方米
日前从国家管网集团获悉：西气东输管道系统2021年累计输送天然气超过1000亿立方米，这是此管道系统年输气量首次超过千亿立方米。
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