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 first order non-simple harmonic coefficient enhances modulus.
第一非简谐系数的存在使弹性模量增大。 - Harmonic analysis of angle measuring error has been done through Fourier analysis theory. First harmonic, second harmonic and third harmonic have been compensated with the method of software. Finally, measuring results have satisfied the specific requirements.
利用傅立叶分析理论对测角系统的误差进行谐波分析，补偿一、二、三次谐波误差，得到补偿公式，通过软件方式实现误差补偿，最后使得测量结果满足技术指标要求。 - 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； - And gives the safety evaluation indexes of nodal diameter static frequency of first harmonic system vibration band of blades with round linking. All these have reference value for judging the high frequency vibration of blade system.
给出了整圈连接叶片一阶系统带节径静频率的安全性评价指标，时判断叶片系统的高频振动具有参考价值。 - 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 - 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 - 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。 - 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。 - Through the method of curve fitting, the eccentric motion which is of the same frequency as the rotary speed is separated ( effectively) from the signals in the first harmonic component. Thus the rotational error of the spindle is determined correctly.
应用数学方法曲线拟合法对测量信号中与转速同频的偏心运动和主轴误差运动中的一次误差运动进行了有效的识别分离，正确消除了偏心运动，实现了主轴误差的准确评定。