n. 发生率; 出现率; 重复率; 频繁; (声波或电磁波振动的)频率 牛津词典 noun 发生率；出现率；重复率the rate at which sth happens or is repeatedFatal road accidents have decreased in frequency over recent years.近年来致命交通事故发生率已经下降。a society with a high/low...
A coordinate system with the 'straight' magnetic field lines is used. The dielectric permittivity elements, evaluated in the paper, are suitable to estimate the wave dissipation by electron Landau damping (e.g. during the plasma heating and current drive generation) in the frequency range of ...
Our calculations show that the intrinsic wave periods varied from 2.5 times the inertial frequency to zero at a critical level near 18-km altitude. The changes in phase between perturbation velocities perpendicular and parallel to the propagation direction were systematic below the height where the ...
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0dB = FS Square Wave Corresponds the dB level to a full‑scale square wave, where peak amplitude is about 3.01 dB louder than a full‑scale sine wave. Account For DC Ignores any DC offset in the measurements. Window Width Specifies the number of milliseconds in each RMS window. A sele...
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网络频谱分析 网络释义 1. 频谱分析 噪声防治与控制 ... (1)频带( Frequency band) (2)频谱分析(Frequency spectrum analysis) (3)哈斯效应( Hass ef… www.hbsafety.cn|基于37个网页
High Frequency Inverter Smart MPPT 3.5kw 5.5kw 24VDC 48VDC All in One Solar 240V Hybrid Solar Inverter for Home Appliance US$162.00-200.00 / Piece High Frequency 1000W 1000va 1kVA 40A MPPT 12V 24V 230VAC Pure Sine Wave off Grid Solar Inverter in Pakistan ...
We have observed an optical modulation with a period of about 15 fs by beating the anti-stokes wave and the pump wave exiting a photonic crystal fibre. These results confirm the coherence of the sidebands generated by scalar modulation instability in the normal dispersion regime. Future experiment...
Pulse output terminal 0~50kHz pulse square wave signal output, can realize the output of physical quantities such as set frequency and output frequency Analog output terminal 2 analog signal outputs. The output range is flexibly set between 0~20mA or 0~1OV, which can realize the output of...