first harmonic
英 [fɜːst hɑːˈmɒnɪk]
美 [fɜːrst hɑːrˈmɑːnɪk]
一次谐波；基（谐）波
英英释义
noun
- the lowest tone of a harmonic series
双语例句
- The method uses the DC component and the first harmonic of a curve'S chain code expressed by fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.
该方法利用闭合曲线的傅立叶级数表示的直流分量和一次分量实现对闭合曲线的椭圆拟合，可以避免通常椭圆拟合方法中的矩阵求逆问题。 - These methods can't be used not only to analyze the non integral order harmonics, but to distinguish the eccentricity and the first harmonic, and contain the lager nonlinear error.
这些方法不能分析非整次谐波，不能区分一次谐波和偏心分量，并且含有较大的非线性误差。 - Secondly, the principles of the LLC half-bridge resonant converter are presented and the performance of LLC resonant converter is analyzed using FHA ( First Harmonic Approximation) method in detail.
其次介绍了LLC半桥谐振变换器的工作原理，并采用基波分析的方法对电路的特性进行详细分析。 - The effect of different topographic scattering targets on the ( ratio) detection was measured and analyzed. The results show that the ratio of second to first harmonic signals can be used in practical application.
文章还就不同地形散射体对探测结果的影响进行了测量和分析，实验结果表明二次谐波与一次谐波信号比值标定技术对便携式二极管激光光学测量能够很好的满足实际应用的需要。 - Thus a smaller membrane gives off a higher first harmonic.
较小的膜发出较高的第一陪音。 - First Harmonic Saturated Absorption Frequency Stabilization of Lasers Using Sampling Integration Technique
利用取样积分实现激光饱和吸收一次谐波稳频 - Starting off with vortex tube theory, the relationship between the angular rates and the first harmonic inflow is deduced, and then the generalized model of main rotor dynamic inflow is modified.
本文建立了尾迹弯曲的模型，推导出角速率与一次谐波入流分量之间的关系，据此对旋翼的广义动态入流模型进行了增广和修正； - This article first harmonic harm, the causes, such as management standard simply introduces several different, and separately calculated method of harmonic described and compared.
文章首先对谐波的产生原因、危害、管理标准等进行了简单的介绍，并分别对几种不同的谐波计算方法进行了阐述和比较。 - The Duffing Eguation with large damping solved by using first harmonic balance method
基波平衡法求解大阻尼Duffing方程 - Because "DGB-2 Type Fast Track Dynamic Power Factor Compensation Device" has detecting circuit of reaching zero, the paper first analysis the harmonic detecting of starting to sample at reaching zero time and realize the upper harmonic detecting.
因为DGB&2型快速跟踪动态功率因数补偿装置具有过零检测电路。论文首先对过零时刻开始采样的谐波检测进行分析，实现了过零时刻开始采样的谐波检测。