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旱地农业
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旱地农业
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农学
旱地农业
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dryland agriculture
旱地农业
在降水稀少又无灌溉条件的干旱、半干旱和半湿润易旱地区,主要依靠天然降水和采取一系列旱作农业技术措施,以发展旱生或抗旱、耐旱的作物和牧草为主的农业。又称旱作农业或雨养农业。
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stepped
stepped atomic time
stepped attenuator
stepped filter
stepped pulse
stepped sector
stepped slit
stepped spillway energy dissipator
stepped temperature program
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stepped weakener
stepped-wedge design
steppe faunal group of temperate zone in China
steppe in China
steppe lemming
Steppenwolf
stepper motor
steppe shrub desertification
steppe shrubs
Steppe soil
stepping lumbus
stepping motor
stepping regression
stepping stone
stepping test
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