工作频率为18M到30m，不占用有线电视频道资源。
Working frequency from 18m to 30m, not take up cable channel resources.
设计并研制出了工作频率为2.5千赫，输出电流从60到250安连续可调的可控硅斩波器及其栅控装置。
A 2.5 KHZ SCR chopper, with the output current controlled continuously from 60a to 250a, and its grid-control device has been designed and built.
这就是你们为之而来的事情：在一个不常常遵照并有时抗拒你最纯净意愿的世界做提高自己频率的内在工作。
And this is the very thing you came for: the inner work of raising your vibration in a world that does not always comply with and sometimes resists your purest intentions.
以us2型交流电位差计工作原理为例，通过公式推导并附以实验数据给出了频率的修正公式。
With the example of working principle of US2 type ac potential difference accounts, the frequency formula was given by formula deducing and attaching with experiment data.
由此引起的过电压频率通常为正常的工作频率。
本文介绍以TMS320LF2407为核心的可编程信号发生与频率检测器的硬件结构、工作原理与软件流程。
This paper presents the hardware structure, working principle and software flow chart of the programmable signal generator and frequency detector device, which uses TMS320LF2407 as core.
因此，根据现有实验条件和其他客观因素，我们进行了多频率超声波发生器的自主研制工作，为我们后面的实验创造实验了条件。
Therefore, according to existing experiment conditions and other objective factors, we carried on an independence research and manufacture work of multi-frequencies ultrasonic device.
本文描述上海天文台为改善氢脉泽标准的频率稳定度和工作可靠性所采用的主要技术，同时给出了采用这些技术后氢脉泽的新的性能数据。
This paper describes approaches taken by the Shanghai Observatory to increase the frequency stability and operational reliability of its hydrogen maser. Performances of the new maser are given.
然后确定了加速应力为影响气缸寿命的工作应力：流体温度、使用压力及气缸动作频率；
Then the determined accelerate stress is the stresses that affect the cylinder life as fluid temperature, working pressure and moving frequency.
对比实验研究表明：声强、辐照时间和频率是影响破乳脱水率的主要因素，而实验温度、工作方式、沉降时间等为次要因素。
The contrasting results show that sound intensity, radiation time and frequency are the main factors, and the secondary factors are test temperature, working mode and settlement time.
主要工作和结论为：（1）分析声场频率、声压和气泡初始半径对气泡动力学过程的影响。
The following work has been done:(1) Analyzing the influence of acoustic frequency, acoustic pressure amplitude and initial bubble radius towards bubble dynamics respectively;
倍频式感应加热电源负载输出频率为功率开关管工作频率的二倍，且功率开关器件工作时具有软开关特性，在需要高频应用的场合很有意义。
Since its output frequency is as twice as the device frequency and it has the merit of soft-switching characteristic, multiple-frequency induction heater is widely used in high frequency application.
同时对检测臂进行了模态分析，测出了其固有频率和结构振型，为检测车工作时的稳定性要求提供了参考。
Meanwhile, the modal analysis is used to test the detection arm's natural frequency and structural vibration modes, which provides a reference for the stability test of the bridge inspection vehicle.
为防止共振发生，电动机的工作频率应远远小于其固有频率。
In order to keep the normal operating state of a electro motor, the working frequency of the electro motor should be much lower than that of natural frequency.
采用以便携式计算机为核心的新型汽轮机叶片频率测量系统可大大提高测量的精确度和工作效率。
Described in this paper is a newly developed portable computer-based vibration frequency measurement system for turbine blades.
我们所设计的系统为的是工作在噪声化输入语音和不明信道频率响应中的。
The proposed system is designed to work with noisy input speech and unknown channel frequency response.
介绍了压电陶瓷换能器产生和接收超声波的工作原理，当输入电压的频率为借振频率时，超声波在介质中产生的驻波最强。
The principle of producing and receiving ultrasonic wave with the piezoelectric ceramics transducer is introduced. Standing wave is strongest when voltage frequency is resonance.
发电机的电压为200伏或115伏，频率为50赫，工作方式为连续运行。
The voltage of electric generator is 115v or 200v, the frequency is 50hz, the work method is continuous running.
发电机的电压为200伏或115伏，频率为50赫，工作方式为连续运行。
The voltage of electric generator is 115v or 200v, the frequency is 50hz, the work method is continuous running.
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