double harmonic buncher 双谐波聚束器
double harmonic map 双重调和映射
double harmonic equation 双调和方程
double harmonic oscillator approximation 双谐振子近似
2D double coupling harmonic oscillator 双模双耦合谐振子
Double rigid gear harmonic reducer 双刚轮谐波减速器
Sub harmonic Double balanced Mixers 次谐波双平衡混频器
In this paper, we divided the double frequency crystal into numerous small double frequency units and derived the harmonic power and the double frequency efficiency in each unit.
本文中将倍频晶体分割成无数多个小倍频单元，并导出每个倍频单元中的谐波功率与倍频效率。
The paper puts forward the mechanism of combined waveform and computation of a SPWM area center equivalent. Harmonic of double pole SPWM waveform is analyzed in this paper.
文中给出了按照面积中心等效法合成SPWM波形的机理以及面积中心等效算法，并对双极性面积中心等效法生成的SPWM波形进行了谐波分析。
The whole system adopts double closed loop control and has good harmonic compensation performance.
整个系统采用双闭环控制，具有较好的谐波补偿性能。
应用推荐