precession frequency是什么意思

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用法例句

The dissertation is focusing on the detection of vortex frequency, which is the key technical problem of vortex flowmeter, a sort of promising and rapidly developing flowmeter.

本论文主要研究目前发展势头十分良好的涡街流量计中的关键技术问题——旋涡频率的检测。

Numerical Simulation and Experimental Research on Detecting Vortex Frequency of Vortex Flowmeter Based on Differential Pressure Principle;

基于差压原理的涡街流量计旋涡频率检测方法的数值仿真及实验研究

Vortices accelerate reaction rates of the unreacted region.

旋涡加速了未反应区的化学反应速率.

fixed frequency cyclotron

固定频率回旋加速器

cyclotron-frequency magnetron

回旋加速频率磁控管

A vortex, as of a whirlwind or whirlpool.

涡流，如旋风或旋涡的

A Testing System Based on LabVIEW for Performance Characters of Converter Scroll Compressor;

基于LabVIEW的变频涡旋压缩机性能测控系统的研究

TECHNOLOGY OF DC FREQUENCY CONVERSION SCROLL COMPRESSOR & OIL BALANCE

直流变频涡旋压缩机技术及系统回油方式

Optimum design of spiral flexure spring for high-frequency pulse tube cryocooler

用于高频脉管制冷机的涡旋板弹簧的优化设计

Application of Frequency Conversion and Digital Scroll Technique in Air-conditioning System

变频与数码涡旋技术在空调系统中的应用

Study on the Optical-Fiber Vortex-Shedding Flowmeter Based on the Optical Frequency Modulation Principle;

基于光频率调制原理的光纤涡街流量计的研究

Analysis of vortex induced vibrations for free spanning pipelines based on the frequency response method

基于频率响应法海底悬跨管涡激振动分析

Study on Optimum Frequency for Eddy Current Testing of Tubes by Numerical Modeling and Experimental Verification

管材涡流探伤最佳频率数值模拟与试验验证

Frequency characteristics of breakdown vortices over delta wings with small amplitude oscillation at the high angle of attack

大迎角下小振幅振荡三角翼破裂涡的频率特性

Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation.

正频率是用逆时针旋转来产生，而负频率是用顺时针旋转来产生。

Comparative Study on the Operational Characteristics of the DVM System and the Frequency Conversion System in Summer

数码涡旋与变频多联式空调系统夏季运行特性的比较

Mechanism analysis on micromachined gyroscope's detecting rotator's spin

微机械陀螺测量旋转体自旋频率的机理分析?

Flood and composite frequence caculation of the topical cyclone storm tide

洪水与热带气旋暴潮组合频率计算

electron gyro-frequency

电子旋磁频率 -在电离层中