“Pennales”的概念、定义、翻译、参考文献-科学参考

单词	Pennales
释义	Pennales [pǝ`nā·lēz] ^BOTANY An order of diatoms (Bacillariophyceae) in which the form is often circular, and the markings on the valves are radial.
随便看	sand dune sander sandfall sand filter spherical distance spherical-earth attenuation spherical-earth factor spherical excess spherical geometry spherical harmonics spherical indicatrix of binormal to a curve spherical indicatrix of tangent to a curve spherical lens spherical mirror spherical pendulum spherical polar coordinates spherical polygon spherical powder spherical pyramid spherical radius spherical sailing spherical sector spherical segment spherical separator spherical stress

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。