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国家储备林
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national forest reserve
国家储备林
为满足经济社会发展和人民美好生活对优质木材的需要,在自然条件适宜地区,通过人工林集约栽培、现有林改培、抚育及补植补造等措施,营造和培育的工业原料林、乡土树种、珍稀树种和大径级用材林等多功能森林。
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ultra-clean and high-purity electronic specific gas
ultra-clean and high-purity reagents
ultra-clear glass
ultraclosed
ultracold molecule
ultracold neutron
ultra-compact dwarf galaxy
ultracompact galaxy nucleus
ultracompact HⅡ region
ultraconvergence
ultracrystallite
ultradeep-field observation
ultra-deep well fracturing
ultradense neutron star
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ultradifferentiable function
ultra diffuse galaxy
ultradistribution
ultradivisor
ultradyne
ultra-early weaning
ultra-elliptic
ultra-elliptic differential equation
ultra-elliptic equation
ultra-elliptic integral
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