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灌溉
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灌溉
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灌溉
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irrigation
灌溉
利用人工设施,将符合质量标准的水,输送到农田、草场、林地等处,补充土壤水分,以改善植物的生长发育条件的农田水利措施。灌溉的主要对象是农作物,故又称作物灌溉、农田灌溉。
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cosmic background explorer
Cosmic Background Explorer satellite
Cosmic Background Imager
cosmic background radiation
cosmic background radiation, CMBR
cosmic brightness
cosmic catastrophe
cosmic censorship
cosmic censorship conjecture
cosmic censorship hypothesis
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cosmic constant
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cosmic dark ages
cosmic deceleration
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cosmic density parameter
cosmic diffuse infrared background
cosmic distance
cosmic distance ladder
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cosmic dust detection
cosmic electrodynamics
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