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- SHENYANG QINGFA MEDIUM FREQUENCY TECHNOLOGY CO., LTD. 沈阳庆发中频技术有限公司。
- This paper introduces the system of single phase large power source varied frequency for heating,contains rectifier,filter,inverter and control circuit etc. 介绍了大功率单相变频加热电源的系统组成,包括整流、滤波、逆变和控制电路等部分。
- In this paper, a randomization sampling system with AC variable frequency technology, based on IP was introduced. 介绍一种以工控机为核心,利用交流变频调速技术实现的随机取样系统。
- The VRV air-conditioning system of variable frequency technology can achieve the effect of energy conservation. 然而,封包的排程方法与睡眠模式的运作方式 对于行动站台的能源消耗会产生很大的影响。
- Characteristics: the application of advanced altering frequency technology, to trim the orderly running and keep energy saving of machine. 特点:。采用先进的变频器调速技术,使设备运转更平稳、更省电;
- In order to reduce energy consumption in air conditioning system, VRV of variable frequency technology is used in air conditioning. 为了降低空调系统的能耗,用变频技术空调中的变冷媒流量系统(VRV)能达到节能效果;
- Abstract: The stabling center frequency technology for transmitter in wavelength devision multiplexing system is very important. 摘 要: 波分复用系统光源中心频率的稳定技术是该系统的关键技术之一。
- The article chooses the radio frequency technology and GPRS communication, which can make up the shortcoming of the IC card and magcard system. 本课题在分析目前市场上现有的采用IC卡、磁卡等技术的路障系统的缺点,选择了无线射频技术和GPRS技术相结合的通信方式。
- The maturing of variable frequency technology becomes an assurance for the reliable operation of a trolley type scraper. 变频调速技术的成熟是滑线式铲运机可靠工作的保证。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Methods The fractures of the ribs of 512 patients were suspected in clinic, and those CR images were processed with gradation and spatial frequency technology. 方法对临床怀疑肋骨骨折512例患者的肋骨CR影像应用谐调处理与空间频率处理的方法进行技术处理。
- varied frequency speed regulating 变频调速
- A two-stage compression variable frequency air source heat pump(TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle. 将双级压缩和变频技术有机结合,提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
- The excursion of instantaneous frequency representation will be resulted when EFT is applied to signals with rapidly varying frequency contents. 对于具有恒定幅度的调频信号而言,瞬时频率代表了其全部的信息,可以据此对信号进行识别和分类。
- The results of the experiment varied wildly. 实验结果差异很大。
- She varied her dress as fashion changes. 她的衣着随着潮流而变化。
- The holiday was nothing if not varied. 假日活动极其丰富多彩。
- The recent festivities seemed more varied than ever before. 最近的这些会演似乎比过去任何一次都更多样化了。
- In terms of pitch, bats produce echolocation calls with both constant frequencies and varying frequencies that are frequently modulated. 关于音调,蝙蝠用恒定频率和频繁调整的变化频率发出回声定位的叫声。
- Chinese commodities available for export are varied. 中国可供出口的商品种类繁多。