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林业生态工程
释义
林业生态工程
Encyclopedia
农学
水土保持林草措施
释
forestry ecological engineering
林业生态工程
中国政府确立的以增加、保护森林资源,遏制水土流失和改善生态环境为目标的林业工程。
经济学
〔农业经营管理〕
释
forestry ecological programs
林业生态工程
根据生态学、林学及生态控制论原理设计、建造与调控,以木本植物为主体的人工复合生态系统建设工程。
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rare earth metal ore deposit
rare earth metal refining
rare earth metals metallurgy
rare earth molten salt electrolysis
rare earth molten salt electrolysis in chlorides
rare earth molten salt electrolysis in fluorides
rare earth nitrate
rare earth oxalate
rare earth oxidation-reduction separation and purification
rare earth oxide
rare earth oxides
rare earth oxides lanthanum thermal reduction
rare earth perchlorate
rare-earth permanent magnet
rare earth permanent magnetic material
rare earth permanent magnetic materials
rare earth permanent magnetic material with low temperature coefficient
rare earth phosphate
rare earth pyrometallurgy
rare-earths-cobalt perma-nent magnetic material
rare earth-sensitized luminescence materials
rare earth solvent extraction separation and purification
rare earth sulfate
rare earth synergistic extraction
rare element
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