| 单词 | 盾皮鱼 |
| 释义 | 〔placoderm〕Any of various extinct fishes of the Silurian and Devonian periods, characterized by bony plates of armor covering the head and flanks, hinged jaws, and paired fins.盾皮鱼：各种现已灭绝的希留利亚纪和泥盆纪鱼类，特征是头部和两侧被多骨的甲壳盖住、有链的颚和成对的鳍 |
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