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reverse pyramid of grassland system
释义
reverse pyramid of grassland system
Encyclopedia
农学
草业系统“倒金字塔”
释
reverse pyramid of grassland system
草业系统“倒金字塔”
在人类强烈干预和已有科学技术手段支持下,通过农学措施提高各个转化阶段的草地生产能力,使经济效益逐级放大(或增值)的“倒金字塔”模式。
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air preheater damage
air pressure
air pressure, barometric pressure
air pressure chemical vapor deposition
air pressure gauge
airproof/sealing felts and blankets
air propeller
air propeller flight tes
Air public transport
air pulsated jig
air pump
air purification system
air purifier
air quality health index
air quality index
air quality index (AQI)
air raid battle
air refractive index compensation technology
air resistance
air robot
air route flight
air rudder of warhead
air sac
air sacculitis
air sacs
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更新时间:2026/4/16 14:02:39