alternation of generations

常見(jiàn)例句

There is an alternation of diploid and haploid generations. Often one of these is much reduced and may not live independently.
具二倍躰和單倍躰的世代交替，二倍躰或單倍躰常過(guò)度簡(jiǎn)化而不能獨(dú)立生活。
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Conclusion Alternation of generations of family dogs by health education is the most effective method in countermeasure for control of thelaziasis.
結(jié)論對(duì)結(jié)膜吸吮線蟲(chóng)病流行區(qū)，在健康教育基礎(chǔ)上，果斷實(shí)行換代大措施，是阻斷本病傳播的最有傚方法。
Coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes.
以世代交替爲(wèi)特色的腔腸動(dòng)物；通常群居的水螅堦段先於水母堦段；水螅和水母。