Definition: A very small tubular part in a plant or animal.管体 guǎn tǐ 指保存在叠层石层理中的丝状微生物的衣鞘。Origin: Late 17th century,from Latin tubulus“small tube” from tubus“tube”.Extended Term:longitudinal tutule 纵小管tubule dentinal 齿质小管,象牙质小管......(本文共 201 字) [阅读本文] >>


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