最早的无线电广播是在1927年在英国利用短波实现的。
The first radio broadcasts were made in Britain in 1927 on short wave.
为更有效地利用短波广播频段，改善其广播质量，单边带制广播提到了议事日程。
For more efficient use of shortwave broadcasting band and improvement of broadcasting quality, single sideband broadcasting has been placed on the agenda.
老牌国际电台有对付审核制度的办法：利用卫星，短波，网络和当地FM电台的组合拳，总能有效解决。
The old international broadcasters have the resources to deal with censorship: the cocktail of satellite, short-wave, Internet and local FM broadcasts offers a powerful mix of solutions.
简介超短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。
Ultrashort wave Electrotherapy Machine is an instrument which utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
利用新研制的短波传播时延实时数字显示系统，在武汉电离层观象台对BPM时号的传播时延进行了长时间连续观测。
Continous observations of the propagation delay variation of BPM standard time signal were carried out in real time at Wuhan Ionospheric Observatory by a digital display system.
本文利用一个考虑了沙尘气溶胶短波辐射效应的天气-沙尘双向模式，对南疆盆地一次冷空气东侵而引起的沙尘天气进行数值模拟。
To study the radiative effect of dust aerosols on synoptic-scale system and the dust transport, an interactive weather-dust model including shortwave radiative effect of dust aerosols is developed.
短波是人类最早开发利用的无线电频段，短波通信是历史最为悠久的现代通信手段之一。
Short wave is radio frequency band earliest utilized by human being, and short wave communication is one modern communication method with a long history.
提出一种利用非单点模糊系统建模的短波通信频率参数预测模型。
This paper presents a prediction model of frequency parameters of short-wave communication based on non-singleton fuzzy system.
利用扩展的双曲正切函数法获得了(2 +1)维长波短波共振相互作用方程的多组新显式精确行波解。
Applying the modified extended tanh-function methods, many types of new explicit traveling wave solutions of the (2 + 1) dimensional long wave-short wave resonance interaction equations are obtained.
提出在短波通信中利用发射端窄波束，在空间上将能量集中于主路径且抑制其他路径来改善多径信道环境；
The authors propose a method of using transmit narrow-beam to spatially concentrate the radiation energy on dominant path and suppress undesired paths in the shortwave communication.
介绍了利用改进型的时间相关算法进行短波非正交跳频网台信号分选的方法。
Shortwave non-orthodox frequency-hopped signal selection by improved time correlation arithmetic is introduced.
利用计算机实现短波信道传输的莫尔斯信号的自动检测和识别就可以减轻相关人员的劳动负担，改善工作环境。
Realizing short Morse automatic detection and recognition by computer can lighten relevant people's burden and improve their work environment.
该体制具有较高的频率利用率，可有效地抑制短波信道中多径时延、频率选择性衰落、人为干扰与噪声带来的不利影响。
This new scheme has the advantages of high spectrum efficiency and suppression of multipath spread, frequency selective fading, jamming and noise.
据此，本发明分别利用能够让发光带转换至更长或更短波长的铅和铜来替代碱土离子。
Accordingly, the present invention is a good possibility to substitute earth alkaline ions by lead and copper for a shifting of the emission bands to longer or shorter wave length, respectively.
此文提出利用软件无线电技术实现海上中短波接收机的原理，该原理的研究能够实现现有海上中短波接收机、NBDP、DSC的功能。
This paper gives out a principle of medium-short wave receiver according to software radio technology. It can realize all function of medium-short wave receiver NBDP device, DSC device.
短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。
Utrashort Wave Electrotherapy Machine is an instrument which utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
超短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。
Ultrashort Wave Electrotherapy Machine is an instrument wh ICh utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
超短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。 主要治疗作用是止痛、解痉、消炎、增强血液循环促进组织的生长和积液吸收。
Ultrashort Wave Electrotherapy Machine is an instrument which utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
超短波电疗机是利用超短波的高频电能作用于人的肌体进行治疗的仪器。 主要治疗作用是止痛、解痉、消炎、增强血液循环促进组织的生长和积液吸收。
Ultrashort Wave Electrotherapy Machine is an instrument which utilizes high frequency electric energy of ultrashort wave to act on human's organism for treatment.
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