“petalichthyids”的概念、定义、翻译、参考文献-科学参考

单词	petalichthyids
释义	petalichthyids Encyclopedia 理学有颌类释 petalichthyids瓣甲鱼类盾皮鱼纲瓣甲鱼目动物的统称，是一种背腹扁平的盾皮鱼类，可能与节甲鱼类具有较近的亲缘关系。
随便看	signal covariance matrix signal crosstalk signal degradation signal denoising signal description signal detection signal detection and estimation signal detection theory signal distortions signal duration signal enhancement signal estimation signal extraction signal extraction in ARIMA time series signal filtering signal fingerprint identification technique signal fire signal flow diagram signal flow graph signal function signal generator signal hypothesis signal identification signaling signaling game

科学参考收录了854744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。