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in situ decomposition of livestock manure
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in situ decomposition of livestock manure
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农学
家畜环境
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in situ decomposition of livestock manure
发酵床饲养模式
在畜舍内畜栏地面上铺设厚垫料饲养家畜,其粪尿中有机物被粪尿和垫料中的微生物发酵分解处理的饲养模式。由于家畜的饲养和粪尿处理均在舍内畜床上完成,又称原位发酵饲养模式。因在畜床上利用微生物分解粪便,也被称为生物床饲养系统。
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spacecraft attitude determination
spacecraft attitude maneuvering
spacecraft autonomous control
spacecraft autonomous navigation system
spacecraft communication, telemetering, command and tracking system
spacecraft control system
spacecraft design
spacecraft entry technique
spacecraft formation flight control
spacecraft launch
spacecraft launching site
spacecraft magnetic test
spacecraft manufacturing
spacecraft material
spacecraft navigation
spacecraft nutation
spacecraft operation
spacecraft orbit control
spacecraft project development phases
spacecraft ranging
spacecraft recovery system
spacecraft relative motion
spacecraft returning technique
spacecraft scale style movement
spacecraft systems engineering
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