| 单词 | 套膜 |
| 释义 | 〔mollusk〕Any of numerous chiefly marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell and including the edible shellfish and the snails.软体动物：任一种无脊椎软体动物纲的海生动物，身体柔软且不分段，外有套膜，并具有保护性的钙质壳，包括可食用的有壳的水生动物和蜗牛〔hectocotylus〕A modified arm of the male of certain cephalopods, such as the octopus, functioning as a reproductive organ in the transference of sperm to the mantle cavity of the female.化茎腕，交接腕：某些雄性头足纲动物，如章鱼身上的一条变种腕，可起生殖器官的作用，把精液传送到雌性的套膜腔中〔mantle〕A fold or pair of folds of the body wall that lines the shell and secretes the substance that forms the shell in mollusks and brachiopods.套膜：软体动物或腕足动物体壁上的膜或套膜，它连接壳体并分泌形成壳的物质〔pallium〕The mantle of a mollusk, brachiopod, or bird.外套膜：软体动物、腕足类动物或鸟的套膜 |
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