The fourth chapter, Changchun city land price space and time change analysis.

第四章，长春市城市土地价格时空变化浅析浅析。

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Logistics is economical activities which in space and time change the materials from industry fields to consumption fields.

物流是物质在空间和时间上从生产领域向消费领域转换的经济活动。

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Space and time change on water-salt movement in saline-alkali soil without irrigation and drainage was studied and analyzed.

研究分析了榆林沙区无排灌条件盐碱地水盐运动的时空变化，其水盐运行主要是随着季节、地形等因素的变化而变化。

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It will demand the courage to create the time and space to have a conversation about what needs to change so they can accelerate their strategies toward success.

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We do, however, believe that there is time and space to pursue diplomacy, to pressure the Iranian regime, to sanction it further to get it to change its behavior.

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With this ability we can now identify, in 3D space and 4D time, the most offending sources of carbon in order to plug this holes and slow the pace of climate change.

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