“frequency upconversion”的概念、定义、翻译、参考文献-科学参考

单词	frequency upconversion
释义	frequency upconversion Physics 光学、声学光学 frequency upconversion升频转换又称“频率上转换”。 frequency upconversion升频转换^†
随便看	single lens reflex digital camera single lens reflex finder single-lens translucent digital camera single lens viewfinder single level single level cell single-level cell single level cell, SLC single-level standardization problem single line single-lined binary single line diagram for hydropower station single-lined spectroscopic binary single-line operation single line propagation single linkage single linked list single liquid quenching single-loop approximation single loop control single loop control system single-loop diagram approximation single loop regulator single loop servo system single-loop-type galvanometer

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。