“ostracoderms”的概念、定义、翻译、参考文献-科学参考

单词	ostracoderms
释义	ostracoderms Encyclopedia 理学无颌类释 ostracoderms甲胄鱼类一类处于七鳃鳗类和有颌类之间的化石无颌类，为并系类群。与具现生种的盲鳗类、七鳃鳗类在形态上完全不同，头部与身体披有甲胄或鳞片，故被称为“甲胄鱼类”。
随便看	signal with finite energy signal with finite power signalyzer signatron signature signature analyzer signature-based detection signature block signature certificate signature criterion signature file signature inversion signature of a group signature of a knot signature of a link signature of a logical language signature of a manifold signature of a matrix signature of an algebraic system signature of an irreducible representation signature of a permutation signature of a pseudo-Euclidean space signature of a quadratic form signature of Wely reflection signature operator

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