“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	hydrogen emission region hydrogen energy hydrogen energy pipeline transportation hydrogen engine hydrogeneration hydrogenerator hydro-generator parts hydrogen evolution reaction hydrogen explosion hydrogen filling station hydrogen flame ionization detector hydrogen flocculus hydrogen fluoride hydrogen fuel hydrogenfuel cell hydrogen gas explosion limits hydrogen gas flammability limits hydrogen gas recovery technology hydrogen generation by hydrolysis hydrogen geocorona hydrogen halo hydrogen in coal hydrogen index hydrogen in metals hydrogen internal combustion engine

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