1) low frequency
低频段
2) high and low frequency region
高低频段
3) the energy ratio of a high frequency band to a low one
高低频段能量比
1.
The wavelet packet transform technique is employed to determine the energy ratio of a high frequency band to a low one.
以小波包分解作为分频手段对暂态电流进行分频,利用高低频段能量比作为保护判据。
4) Low-frequency
低频
1.
Brief Introduction on Improving the Secondary Circuit of Excitation Inversion to Prevent the Generator from Low-frequency Overexcitation;
浅谈改造励磁逆变二次回路防止发电机低频过励
2.
An ore smelting electric are furnace with low-frequency electric power could save electric energy and electrode, and raising their production furthermore.
低频电源应用于矿热炉中,能提高产量,节约电能与电极。
3.
Compared to the conventional patterns,this modulation pattern satisfies the demand of inverters on the bands of both low-frequency and high-frequency better.
相对传统的调制方式,此方法能够同时满足变频器输出在高频段和低频段的需要,适应了不同应用场合下的要求。
5) low frequency
低频
1.
Parameter selection and experiment research of the low frequency vibration plug removal machine;
低频水力振动器的参数确定与试验研究
2.
Intracrytalline element solubility and mechanical property of a new super-high strength and toughness Al alloy cast under low frequency electromagnetic field;
低频电磁铸造超高强高韧铝合金元素晶内固溶度和力学性能研究
3.
Super-high strength 7A60 Al alloy by low frequency electromagnetic cast(Ⅰ)——as-cast structures of billets with diameter of 0.2 m;
7A60超高强铝合金的低频电磁铸造(Ⅰ)——直径0.2m锭坯的铸态组织
6) VLF/LF
甚低频/低频
1.
Simulation Study on Atmospheric Noise in VLF/LF Communication;
甚低频/低频通信中大气噪声仿真研究
参考词条
补充资料：十报恩 赠段先生 折段字起
【诗文】：
公物外好生涯。火相逢结大砂。女盘桓看大药。牛哮吼戏灵葩。云铺地丹炉赫，子观天碧眼华。有三生君省悟，中无事步烟霞。
【注释】：
【出处】：
公物外好生涯。火相逢结大砂。女盘桓看大药。牛哮吼戏灵葩。云铺地丹炉赫，子观天碧眼华。有三生君省悟，中无事步烟霞。
【注释】：
【出处】：
说明：补充资料仅用于学习参考，请勿用于其它任何用途。