“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	plug-and-feather hole plug-and-feather method plug back plug bit plugboard plugboard chart plug cock plug-compatible hardware plug cutter plug die plug dome plug drawing plug flow plug forming plug fuse plug gage plugging plugging agent plugging chart plughole plug-in unit plug meter plug program patching plug reef plug-to-plug compatibility

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。