世界天然气流动节点格局演化及其资源效应
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王宜强, 赵媛
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Evolution of the global pattern of natural gas flow nodes and its resource effect
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WANG Yiqiang, ZHAO Yuan
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表2 2006—2018年汇流节点标准差椭圆相关指标
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Table 2 Standard deviation ellipse (SDE) parameters of import nodes, 2006-2018
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| 年份 | 管道天然气汇流节点标准差椭圆 | | 液化天然气汇流节点标准差椭圆 | | 沿X轴标准差/km | 沿Y轴标准差/km | 扁率/km | 转角/° | 沿X轴标准差/km | 沿Y轴标准差/km | 扁率/km | 转角/° | | 2006 | 7911.50 | 2117.23 | 5794.27 | 90.00 | | 11431.57 | 777.00 | 10654.57 | 92.25 | | 2007 | 8103.50 | 1940.67 | 6162.84 | 91.07 | 11938.70 | 789.73 | 11148.97 | 91.95 | | 2008 | 8022.61 | 1820.70 | 6201.91 | 92.05 | 10675.36 | 906.56 | 9768.80 | 91.06 | | 2009 | 8405.10 | 2068.47 | 6336.62 | 90.58 | 11141.72 | 1312.91 | 9828.82 | 91.33 | | 2010 | 8568.67 | 2222.12 | 6346.54 | 92.17 | 11141.34 | 1820.83 | 9320.51 | 89.98 | | 2011 | 8901.03 | 2305.38 | 6595.66 | 92.39 | 10631.85 | 2045.73 | 8586.12 | 89.94 | | 2012 | 8900.54 | 2342.60 | 6557.94 | 92.09 | 9972.259 | 2070.66 | 7901.60 | 87.23 | | 2013 | 8779.82 | 2240.61 | 6539.21 | 91.58 | 9913.99 | 2121.09 | 7792.90 | 84.87 | | 2014 | 8924.91 | 2428.43 | 6496.47 | 91.68 | 9931.07 | 2112.19 | 7818.88 | 84.45 | | 2015 | 8733.08 | 2365.05 | 6368.04 | 91.41 | 9715.28 | 2138.51 | 7576.77 | 84.89 | | 2016 | 8914.41 | 2316.50 | 6597.91 | 90.46 | 9163.36 | 2019.01 | 7144.35 | 85.49 | | 2017 | 8889.89 | 2263.25 | 6626.64 | 90.09 | 8720.93 | 1882.16 | 6838.77 | 85.84 | | 2018 | 9263.05 | 2232.01 | 7031.04 | 89.51 | 8433.98 | 1774.84 | 6659.13 | 86.33 |
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