1) LOF Lowest Observable Frequency
最低可辨频率
2) the lowest useable frequency
最低可用频率
1.
Calculation of the lowest useable frequency for long distance HF communication;
远距离短波通信最低可用频率的计算
3) lowest useful high frequency
最低可用高频率
4) optimum time-frequency resolution
最优时频分辨率
1.
In order to improve time-frequency resolution, this paper has made a research on how to construct a family of optimum time-frequency resolution(OPTFR.
本文重点研究了如何构造最优时频分辨率多小波,使其优良的时频特性得到充分发挥。
5) lowest useful high frequency
最低可用高频<光>
6) LUHF Lowest Usable High Frequency
最低可用高频
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条