“Petalichthyida”的概念、定义、翻译、参考文献-科学参考

单词	Petalichthyida
释义	Petalichthyida [´ped·ǝ·lik`thē·ǝ·dǝ] ^PALEONTOLOGY A small order of extinct dorsoventrally flattened fishes belonging to the class Placodermi; the external armor is in two shields of large plates.
随便看	data set migration data set organization data sink data source data stabilization data statement data station data station control data stream data structure data switch data system data system interface data systems integration data system specifications data tablet data tracks data transcription equipment data transfer data transmission data transmission equipment data transmission line data transmission-utilization measure data type data under voice

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。