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- The PED System is an ultra low frequency "through the earth "paging control and remote blasting system. PED井下无线通讯与急救系统是世界上唯一一套可实现超低频信号穿透岩层进行传输的无线急救通讯系统。
- With the ultra low frequency sound box combination use, may have theacoustics which plentifully shocks. 与超低频音箱组合使用，可产生更加丰满震撼的音响效果。
- A new method,which the ultra low frequency dielectric spectroscopy can be obtained by the absorption current with FFT,was established. 本文描述了一种利用FFT,从介质吸收电流得出其超低频介电频谱的新方法。
- According to the experimental results of absolute test and on-line test,the ultra low frequency vibration table is substituted with the SCM for FBA dynamic test. 通过对比力平衡加速度计的绝对测试和在线测试实验结果,证明自标定机构可以代替超低频标准振动台来进行力平衡加速度计的动态测试。
- Ultra low frequency spectra of dielectric constant and loss tangent as well as the Cole-Cole diagram can be obtained from the C-t curve by using the Debye equations and the relaxation parameters. 根据德拜方程可以从实测的C-t关系中得到材料介电常数与损耗角正切的超低频频谱及相应的Cole-Cole图。
- The main spectral components are distinguished in the heart rate variability spectrum: ultra low frequency(ULF),very low frequency(VLF), low frequency(LF), high frequency(HF) components . 心率变异性长时程功率谱主要成份分为超低频、极低频、低频、高频。
- Ultra low frequency signal generator 超低频信号发生器
- In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system. 在音响设备中出现的振荡频率极低的低频振荡，常因放大系统的正反馈回路引起。
- ultra low frequency electromagnetic wave 超低频电磁波
- ultra low frequency and large amplitude 超低频大振幅
- A combined power system adaptive stabilized apparatus GPSS is designed to suppress low frequency oscillation and to improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡;提高电力系统稳定性;设计了一种组合电力系统自适应稳定器GPSS(以下简称自适应稳定器GPSS).
- The influence of inertia constant (H_D) of induction motor on low frequency oscillation (LFO) was studied. 研究感应电动机惯性时间常数HD对电力系统低频振荡(LFO)的影响.
- One is the low bus voltage at Omei substation;and the other is the low frequency oscillation problem. 目前台电系统中存在两个主要问题：一个是峨眉汇流排电压过低的问题，另一个是潜藏在区域间的低频振荡问题。
- The validity study of Prony analysis for low frequency oscillation in power system.Electric Power,2001,11(34):38-41. Prony算法分析低频振荡的有效性研究.;中国电力;2001;11(34):38-41
- In this paper, low frequency oscillations (LFO) in the model atmosphere are studied using the 10-year pentad-mean data simulated by the IAP GCM. 本文利用IAPGCM积分结果中10年候平均资料，研究了模式大气中的低频振荡现象。
- A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation and to improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡，提高电力系统稳定性，设计了一种组合电力系统混合自适应稳定器(GPSS)。
- A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation andto improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡,提高电力系统稳定性,设计了一种组合电力系统混合自适应稳定器(GPSS)。
- The validity study of Prony analysis for low frequency oscillation in power system [J].Electric Power, 2001, 34(11): 38-41. Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;34(11):38-41
- The validity study of prony analysis for low frequency oscillation in power system[J].Electric Power,2001,11(34):38-41(in Chinese). Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;11(34):38-41
- Study on Transfer of Ultra Low Frequency Information 超低频信息传递的发射装置设计
