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作物种质资源农家保护
释义
作物种质资源农家保护
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农学
作物种质资源农家保护
释
crop germplasm resourceson-farm conservation
作物种质资源农家保护
由当地农民在自家农田和庭园延续种植各种作物品种,在这些品种得到世代流传的同时,也使其不断经历自然选择和人工选择的过程。又称农户保护。
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electro-optical modulator
electro-optical Q-switched technology
electro-optical telemeter
electro-optical tracking system
electro optic coefficient
electro-optic coefficient
electro-optic constant
electro-optic crystal
electro optic deflection
electro-optic deflection
electro optic effect
electro-optic effect
electro-optic effect of liquid crystal
electro optic effect waveguide device
electro-optic effect waveguide device
electro-optic materials
electro optic modulation
electro-optic modulation
electrooptic radar calibration technique
electro optics
electro-optics
electro-optic sampling
electro-optic spectrograph
electro-optic transparent ceramics
electroorganic synthesis
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