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草类植物病害损失估计
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草类植物病害损失估计
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草类植物病害损失估计
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herbaceous plant loss assessment
草类植物病害损失估计
在病害发生与流行资料的基础上,通过比较、实验或综合分析等方法,测算草类植物病原物导致草地生产力及经济收益损失程度的一系列活动。
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calibration of neutron measurement instruments
calibration of radioactive instruments
calibration of weights
calibration procedure
calibration source
calibration spectrum
calibration star
calibration system
calibration technique of engine test bed
calibration technology of engine intake air flow
calibration tool
calibrator
calibrator for extensometer
calibre
calicheamicin
calicivirus gastroenteritis
calidus
California current
California encephalitis
California Extremely Large Telescope
California Highway 1
California Institute of Technology
California Institute of the Arts
California Museum of Photography
Californian Case Study House Program
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