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单词
swimming bell
释义
swimming bell
noun
:
a bell-shaped swimming organ in some siphonophores composed of a greatly modified zooid without mouth or tentacles and serving to propel the colony by its rhythmical contractions
:
nectophore, nectocalyx
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polymyxin
polymyxin A
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polynee
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polynesian chestnut
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更新时间:2025/3/12 21:27:28