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土壤耗竭
释义
土壤耗竭
Encyclopedia
农学
土壤耗竭
释
soil exhaustion
土壤耗竭
由于超负荷耕种或自然环境恶化,养分大量消耗,土壤肥力减退,农作物和其他植物难以生长的贫瘠化现象。
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photon
photon activation analysis
photon activation analysis (PAA)
photo nadir point
photon and dilepton production
photon annihilation
photon antibunching
photon-assisted tunneling
photonasty
photon avalanche
photon bunching
photon bunching and antibunching
photon channel
photon coincidence
photon collider
photon counter
photon counting
photon-counting detector
photon decoupling
photon degeneracy
photon detection
photon detector
photon diffusion
photon Doppler velocimetry
photon-drag photodetector
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