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农业环境保护发展史
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农业环境保护发展史
Encyclopedia
农学
[农业环境保护总论]
释
development history of agricultural environmental protection
农业环境保护发展史
防治土壤肥力过度衰竭、维护土地休养生息等农业环境保护的行为、制度、理论、技术及其体制机制的发展过程。
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photosensitization
photosensitize
photosensitized oxidation
photosensitizer
photosensive plant poisoning
photosensor
photosensory transduction mechanism
photoseparation
photoset
photosignal
photosource
photospallation
photosphere
photospheric abundance
photospheric activity
photospheric eruption
photospheric facula
photospheric line
photospheric model
photospheric network
photospheric radiation
photospheric spectrum
photospheric surface
photospheric telescope
photospheric temperature
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