facultative a.授权的,机能上的,才能上的...obligatory-facultative reinsurance 预约分保...facultative parthenogenesis 兼单性生殖,兼孤雌生殖...facultative regeneration 非必然再生...facultative aerobes 兼性需氧菌...facultative reinsurance 临时再保险...facultative parasite 兼性寄生物...facultative parasitism 兼性寄生...facultative manifest hypermetropia 条件性显性远视...facultative anaerobes 兼性厌氧菌...facultative hyperopia 条件远视...facultative sterility 避孕性不育...facultative saprophyte 兼性腐生物,兼性死物寄生菌...
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