“N.A.”的概念、定义、翻译、参考文献-科学参考

单词	N.A.
释义	N.A. See <<numerical aperture>>
随便看	viscus vise visibility visibility factor visibility function visibility meter visible absorption spectrophotometry visible bearing visible horizon visible radiation visible spectrophotometry x-ray spectrograph x-ray spectrometer x-ray spectrometry x-ray spectroscopy x-ray spectrum x-ray star x-ray target x-ray telescope x-ray therapy x-ray thickness gage x-ray tube x-ray unit XS-3 code X test

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。