“principal ray”的概念、定义、翻译、参考文献-科学参考

单词	principal ray
释义	principal ray Physics 光学、声学光学 chief ray, principal ray主光线 principal ray主光线^† Mathematics principal ray主射线
随便看	body of rotation body palpation body piece structure body plan formation body plasticizing technology body politics body potential body protein body resistance theory body scrub scream body section radiography body sensor network body somatometry body specimen body-spirit syncretism body storming body surface body surface abscess body temperature body tide body trace body type theory body-type theory of crime body wave body waves

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。