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reverse pyramid of grassland system
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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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petrology
Petropavlovskiy crater
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petrophysical facies
petrophysical properties of rock
petro physics
petrophysics
Petrosani
petrosavia family
petrosectomy
petroselinic acid
petrous bone cholesteatoma
Petrov
Petrov classification
Petrov Galerkin method
Petrov-Galerkin method
Petrov notation
Petrovskiǐ
Petrovskiǐ condition
Petrovskiǐ hyperbolicity
Petrovskiǐ theorem
Petrovsky
Petrozavodsk
Petru Groza
Petrus Christus
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