The Granger Causality test shows that on the premise of second-order lag, the energy consumption and carbon emission are the one-way Granger reason of GDP.
格兰杰因果关系检验结论为在二阶滞后期的前提下，能源消费和碳排放量均是GDP的单向格兰杰原因。
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The data replication not only reduces network lag and bandwidth consumption when accessing long-range data, but also improves load balance of network, security and reliability of data.