1)  Beat frequency
拍频频率
2)  beat frequency
拍频
1.
A method to measure the beat frequency of weak light;
一种测量弱光拍频的方法
2.
The calculation method of critical operation speed is put forward based on the theories of vibration and composition of beat frequency;the principles of determining the allowable operation speed are concluded.
应用振动和拍频合成理论,提出了计算临界车速的方法,并给出了确定许用车速的原则,供设计人员参考。
3.
In order to find the optimal operating point,expressions for FMDLG beat frequency are analyzed.
当四频差动激光陀螺工作于增益曲线上左、右旋陀螺比例因子相等位置时,误差因素在拍频的差动中得到较好的抵消,因而具有较优的性能。
3)  beat frequency
拍频特性
1.
A new criterion using the beat frequency characteristics is proposed, which can distinguish the temporary faults from permanent faults perfectly.
针对带并联电抗器的超高压线路,分析了故障跳开相恢复电压公式,详细推导了故障跳开相恢复电压的工频分量幅值、自由分量幅值及自由分量频率,理论分析及EMTDC仿真实验证明了推导结果的正确性,基于此提出采用恢复电压的拍频特性作为无故障判据,该无故障识别方法具有很强的实用性,为带并联电抗器输电线路采用单相自适应重合闸提供了一种非常简单可靠的方案。
4)  beat-wave interferometry
拍频干涉
5)  quantum-beat
量子拍频
1.
On the squeezing effect of the light field in a Λ-type degenerate quantum-beat three-level system;
Λ-型简并量子拍频三能级系统中的光场压缩效应
2.
The dynamic behavior of the interaction between the V-type quantum-beat three-level atomic system and the single-mode squeezed vacuum field has been studied based on the quantum theory.
研究了V-型量子拍频三能级原子与单模压缩真空场作用过程中系统的动力学行为,运用数值方法讨论了系统参数对系统光场压缩特性的影响。
3.
The dynamic behaviour of the interaction between excited coherent states and V-type quantum-beat three-level atoms are discussed.
本文研究了激发相干态与与Ｖ－型量子拍频三能级原子作用时的动力学行为，并对光子反聚束效应和系统 光场的压缩特性进行了细致的讨论。
6)  difference frequency
差拍频率
参考词条
补充资料：胡笳十八拍·第六拍
【诗文】：
怪得春光不来久，胡中风土无花柳。天翻地覆谁得知，
如今正南看北斗。姓名音信两不通，终日经年常闭口。
是非取与在指撝，言语传情不如手。



【注释】：



【出处】：
全唐诗：卷303-16
说明：补充资料仅用于学习参考，请勿用于其它任何用途。