Energy & land-saving housing development trend in Chongqing was analyzed and simulated with the model and computer which concerned by decision-makers.
借助计算机工具以重庆市为例进行模拟实证分析，得出决策者们关心的趋势性结论；
The utility model relates to a water-saving bag for the drip irrigation of dry land.
本实用新型涉及一种旱地滴灌节水包。
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