To implement the most stringent land conservation system, strictly control the total scale of construction land in urban and rural areas.
实行最严格的节约用地制度，从严控制城乡建设用地总规模。
One basic weakness in a conservation system based wholly on economic motives is that most members of the land community have no economic value.
完全基于经济动机的保护系统有一个根本的弱点，即陆地群落的大部分成员不具备经济价值。
This paper introduces American efforts in conserving digital information and gives a brief analysis and evaluation of the American digital information conservation system frame.
本文介绍了美国在数字信息保存上所作的努力，并简要评析了美国数字信息保存的体系框架。
This paper introduces American efforts in conserving digital information and gives a brief analysis and evaluation of the American digital information conservation system frame. 6 refs.
本文介绍了美国在数字信息保存上所作的努力，并简要评析了美国数字信息保存的体系框架。参考文献6。
This paper introduces American efforts in conserving digital information and gives a brief analysis and evaluation of the American digital information conservation system frame. 6 refs.
本文介绍了美国在数字信息保存上所作的努力，并简要评析了美国数字信息保存的体系框架。参考文献6。
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