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环境保护地区
释义
环境保护地区
Encyclopedia
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区域规划
释
environmental protection area
环境保护地区
在国土开发体系和格局中,为维护国家和区域生态安全、保障经济社会可持续发展,依法依规划定的生态环境保护区域,既是生态空间的保护区、环境质量的保障区、也是资源开发利用限制的管制区。依据保护的目标、保护对象和保护形式,环境保护地区不仅具有空间保护上的明确边界、政策管理上的行政边界、还具有资源利用上的数量控制。
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unalloyed cold-heading and cold-extruding steels
unalloyed free-cutting steel
unalloyed machinery steels
unalloyed plain steel
unalloyed quality steel
unalloyed section steel for construction
unalloyed special quality steel
unalloyed steel
unalloyed steel for boiler and pressure vessel
unalloyed steel for concrete reinforcement
unalloyed steel for covered electrode and welding wire
unalloyed steel for high performance building structure
unalloyed steel for railway wheels
unalloyed steels for engineering structures
unalloyed steels for railway axles
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