搜索 - 科创

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非常感谢！我需要的就是反面意见，问题只能出在试验阶段。反刍动物瘤胃里的微生物会分解纤维素、半纤维素、木质素，而这些微生物的生长就已经把能量转化成蛋白质了，这些微生物又被真胃分解，吸收，所以第一批选择...

引用第46楼nhlijiaming于2012-09-27 09:32发表的回 44楼(narssin) 的帖子 :谢谢你的建议。看来加个蜂鸣器是必须的~~~做成类似风向标的外形应该可以避免旋转问题请...

引用第11楼正版hambaby于2009-05-07 12:52发表的 :大约从1987年开始，老妈开始每年夏季DIY番茄罐头，每年大约制作20~30kg（净含量），就是用普通的民用高压锅，常压蒸汽...

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