“三线一单”的概念、定义、翻译、参考文献-科学参考

单词	三线一单
释义	三线一单 Encyclopedia 工学三线一单释 three lines and one list三线一单生态保护红线、环境质量底线、资源利用上线、环境准入负面清单的简称。
随便看	frequency scale frequency scanning antenna frequency selective surfaces frequency selectivity frequency sensitive starter frequency sensitivity frequency shift frequency-shift keying frequency-shift keying, FSK frequency-shift keying modulation and demodulation frequency shift of scattering light frequency shift theorem frequency-shift track circuit frequency-size distribution frequency spectrum frequency stability frequency stability criterion frequency stability measurement frequency stabilization frequency stabilized laser frequency standard frequency standards frequency step frequency sweep mode frequency swept laser

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。