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curved-beam plow
释义
curved-beam plow
Encyclopedia
历史学
[科学技术]
释
curved-beam plow
曲辕犁
中国唐代后期发明的耕作农具。最早出现于江南地区,因此又称为江东犁。
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upper end
upper end of an integral
upper envelope
upper estimate
upper eyelid
upper finite group
Upper-flow system
upper function
upper gastrointestinal bleeding
upper gastrointestinal examination
upper gastrointestinal hemorrhage
upper girdle muscles
upper half-disk
upper half-martingale
upper half-plane
upper half-space
upper harmonic
upper harmonic wave
upper heat and lower cold
upper hemisphere
upper homology
upper hybrid frequency
upper hybrid oscillation
upper hybrid wave
upper hyperactivity of liver yang
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