frequency variation的例句大全

the study provided the variation range of paddy field hardpan roughness and the effective frequency of the hydraulic copying system.

试验研究提供了水田沟底不平度变化范围以及可以实用的插秧机液压仿形系统的仿形频次。

numerical simulation shows an accurate prediction in the variation of the frequency and the pressure amplitude as a function of the mean flow velocity.

数值模拟准确预测了振荡频率以及压力振幅随时均流速的发展规律。

though the matlab simulation, the influence of the power voltage aberration, the effect of reference input voltage amplitude and the frequency, especially the effect of the integral gain variation are discussed, and then a valuable conclusion is given.

通过建立MATLAB仿真模型，研究了电网电压畸变、参考输入电压幅值和频率，以及积分增益变化对检测性能的影响，并得出有实用价值的结论。

based on the data of 2 min geomagnetic total field observation in beijing and its adjacent areas, the frequency spectrum characteristic and the time-space variation of amplitude ratio of frequency spectrum for beijing station and other 11 temporal stations are analyzed.

应用北京及邻区2min采样的地磁总场观测资料，分析了北京台与各临时台地磁总场的频谱特性与频谱幅比的时空变化。

study on rotary reversal valve in variation frequency and variation distance repeated impact fatigue testing machine

变频变行程多冲碰撞疲劳试验机中旋转式换向阀的设计研究

And there are great variation in frequency of lovemaking among happy couples.

而每对恩爱夫妻的做爱频率都是迥然相异的.

Rock resistivity has frequency dispersion, which causes the variation of param-eters in Archie formula.

岩石电阻车不仅具有频散特性, 而且会因频散作用而造成阿尔奇公式中各种参数的变化.

Comparatively, the frequency of variation on number of tepals was obvious higher than that of stamens.

花被裂片数目变异的频率明显高于雄蕊数目变异.

Speed variation is influenced by the initial status of vibrancy during switch time of drive frequency.

同时在驱动频率切换期间,振动的初始状态对转速变化过程也会产生影响.

Based on the two high frequency miniature non-metallic PTCs, this paper investigated the variation of the lowest no-load temperature of the cold head and co-axial conduction heat lossed with the temperature of the warm end respectively.

本文针对所设计的两台高频微型同轴非金属脉冲管制冷机，实验研究了制冷机冷端无负荷最低温度和轴向导热损失随热端温度的变化规律。

This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation;

本文对双极性调制的无刷直流电动机仿真，分析了转速和调制频率对转矩影响；

Introduces three methods that can adjust refrigerating output according to the variation of load aimed at the varying duty condition during the practical operation process of refrigeration system, frequency inverter technique, parallel unit with several compressors and liquid refrigerant storing method.

针对制冷系统实际运行过程中存在的变负荷工况，介绍三种根据负荷变化调节制冷量的方法：变频技术、多机并联压缩机组以及液体制冷剂储存方法。

The results showed that parameters Index of Diversity(ⅰ), Variance of Phenotypic Frequency ( VPF), Variance of Phenotypic Value ( VPV) and Coefficient of Variation ( CV) are more effective on evaluating different methods for core collection selection among 8 studied parameters.

结果表明，在所选8个参数中，多样性指数、表型方差、表型频率方差及变异系数为对比不同核心种质取样方法间优劣的有效参数；

We consider that the variation of the oscillation frequency and anharmonic oscillation in the process of time evolution originate from the stochastic coherence property of atom oscillators in the system.

认为时间演化过程中振荡频率的改变和振荡的非谐性来源于系统中原子振子的随机相干性。

Analysis of Variation and Cause about the Verb-Object Combination in the Context of the Title This paper describes a Static Phase Advancer using thyristor AC-AC frequency converter which is designed for asynchronous induction motor.

标题语境中动宾组合变异及动因分析介绍了一种由可控硅构成的交交变频器为主要结构的异步电动机静止进相器。

Orthogonal Multi-Carrier Modulation ( OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.

为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。

A Wake Field Detection Mothod Using Laser Wavefront Variation Frequency shift of laser pulse propagating in wakefield

一种利用激光波前变化检测尾流场的方法尾波场中传播的激光脉冲的频率漂移

The results show that the non-linearity is mainly attributed to a thermal fluctuation magnetic after effect and a numerical variation of the magnetic domain with frequency.

结果表明，非线性主要来源于热起伏磁后效和为了降低微涡流损耗而引起的磁畴数随频率的变化。

Variation of critical twinkle visual frequency between normal people and schizophrenics

正常人与精神分裂症患者的临界闪烁视频率的差异

The observed clinal variation in the frequency of serotinous cones may be described as a fairly regular decrease in all directions.

所观察到的晚熟球果的频率梯度变异可描述如下：向四周相当有规律地渐次减少。