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- The ac power produced by APU generator is of constant frequency. APU发电机产生的交流电源是恒频的。
- Suppose the speakers both emit a pure sinusoidal sound wave of constant frequency. 假定两个扬声器都发射恒定频率的纯正弦声波。
- This paper focuses on voltage regulation strategies of 400Hz CVCF(Constant Voltage Constant Frequency) inverter. 本文研究了400Hz恒压恒频(CVCF)中频电源逆变器波形控制策略。
- For this reason, it has the absolute advantage to adopt the technique of variable speed constant frequency (VSCF). 为了提高风能的利用率,变速恒频(VSCF)风力发电技术有其绝对的优越性。
- The VSCF (Variable Speed Constant Frequency) wind power generation is a new technology. 风速仿真是风力发电研究的重要手段之一。
- These practices shown that the phase-lockd loop has made it possible to offer a stabilized frequency source for high speed spinning of the POY Dacron filament. 实践表明,它解决了涤纶长丝高速纺丝变频电源的频率稳定度问题。
- The APU engine drive the generator in lower speed to produce ac power at constant frequency. APU发动机以低速驱动发电机，从而产生恒频的交流电。
- Electronic Support Measure (ESM) system has the function of threat detection and the area monitor to locate and identify the Radio Frequency Source (RFS). 电子支援措施(ESM)系统执行威胁探测和区域监视功能，以确定周围辐射源的类型和方位。
- Otherwise, the timer will use another constant frequency clock like the chipset, BIOS or the power management timer. 否则的话，计时器就将使用其它频率一致的时钟，如芯片组、基本输入与输出系统（BIOS）或电源管理计时器。
- Whatever it is radar, ECCM equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal. 无论是雷达、电子对抗，还是通信、仪器设备等都需要高稳定度的频率源，以保证载波信号的质量。
- The frequency source in Global Positioning System (GPS) receiver has a great many influence on the whole performance of the receiver. GPS(Global Positioning System)接收机中参考频率源的性能对接收机整体性能有着诸多影响.
- The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system. 双馈发电机的有功和无功功率的解耦控制是变速恒频(VSCF)风力发电系统的关键技术。
- Phase noise is the key character in direct digital frequency synthesizers (DDS) applied in the high stable frequency source. 摘要相位噪声是制约DDS用于高稳定频率源的的关键指标。
- A control strategy for piezoelectric transformer backlight inverter based on a constant frequency control and phase control is presented. 以定频控制和相位控制为基础的控制方式被用来控制压电式背光换流器系统在本文中被提及。
- All kinds of circuit topology and power modulation technology for variable speed constant frequency(VSCF)wind power generator system are introduced. 简单介绍了变速恒频风力发电系统中出现的一些常用拓扑结构及功率调节技术。
- The switching solution should have as a minimum the bandwidth of the DUT, and preferably equal to the bandwidth of any higher frequency source and measurement equipment. 切换方案的最小带宽应该为DUT的带宽，最好是等于任何高频源和测量设备的带宽。
- PSM (Pulse Skip Modulation) is a novel modulation. This kind of modulation mode operates in constant width and constant frequency mode (CWCF) which differs from the fore both. 脉冲跨周调制模式(PSM, Pulse Skip Modulation)是一种全新的调制模式,异于PWM和PFM,是一种恒宽恒频(CWCF)的调制模式。
- Y. Hatanaka, “Zero-Current-Switching High Frequency Inverter With Constant Frequency Power Control,” Power Conversion Conference, Yokohama, No. 19-21, Apr. 1993, pp. 265-270. 黄少崴，“新型零电流切换脉波宽度调变蓄电池充电器”，昆山科技大学电机工程系硕士论文，2005年。
- His wife was a constant inspiration to him. 他的妻子经常鼓励他。
- Huliehel, F. A., F. C. Lee and B. H. Cho, “Small-Signal Modeling of Single-Phase Boost High Power Factor Converter with Constant Frequency Control,” IEEE PESC, pp.475-482, 1992. 方嘉隆，“高效能主动式功因修正器电路研制”，国立中山大学电机工程学系硕士论文，民国九十五年。
