energy conservation system 节能系统
water conservation system 水利系统
evidence conservation system 证据保全制度
biological conservation system 生物学保护体系
ecological conservation system 生态学保护体系
soil and water conservation system 水土保持系统
Study on evidence conservation system 试论证据保全制度
high-efficient agricultural water conservation system 高效农业节水体系
The fourth part (the sixth chapter) is about the study on the conservation system of the historic built environment in Chongqing.
第四部分(6章)，重庆历史建成环境保护制度研究。
参考来源 - 重庆历史建成环境保护研究In the light of current conservation conditions of historic districts, and maintaining theory invention, methodology invention, and system invention, this essay approaches and constructs the conservation system in of historic districts.
本文针对当前历史街区保护现状，坚持理论创新、方法创新、制度创新和体制创新，探讨和建构历史街区的保护机制。
参考来源 - 历史街区保护机制初探·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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