Short-wave radio uses the 20-50 metre band.
短波收音机用的波段是20–50米。
We should have portable short-wave sets .
我们应该有轻便的短波通讯设备。
Some new treatments can also be used as short-wave UVB .
一些新的治疗方法像短波UVB也可以使用。
Churchill's cadences began to roll out of the short-wave radio.
短波电台里开始传出邱吉尔那抑扬顿挫的声调。
Objective In order to observe effect of short-wave ultraviolet ray therapy in decubital ulcer of skin.
目的观察短波紫外线照射治疗皮肤损伤的疗效。
It is found that these pattern are caused by short-wave instability through the linear stability analysis.
通过对模型进行线性稳定性分析,发现这些时空斑图是由于短波不稳定性所引起的。
This arrangement lasted until the 1930s, when the invention of short-wave wireless improved and cut communications costs.
这种安排一直持续到1930年,当时的无线短波改善和降低了通讯费用。
A types of level omnidirectional arrays of antenna is designed and studied according to the characteristics of short-wave.
根据短波传输的特点设计并研究了一种水平极化的全向振子阵。
This paper presents a prediction model of frequency parameters of short-wave communication based on non-singleton fuzzy system.
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。
One can hear English 24 hours a day by listening to short-wave radio or FM stations that broadcast music and information shows in English.
首先,中国国内几乎到处都有英语:短波和调频台一天24小时都在播放用英语主持的音乐节目及其他知识性节目;
The number of people listening to short-wave radios has been dropping fast, while a growing number now listen online or via local FM re-transmissions.
收听短波电台的听众人数急剧下降,相反在线收听或者通过当地调频接受的用户不断增加。
According to calculation, visible channel is the main channel in detecting dust particles. Short-wave IR also has some sensitivity to dust observation.
通过计算得出可见光波段是探测沙尘气溶胶的主要通道,短波红外波段对沙尘气溶胶也很敏感。
Using the traditional algorithm, the vehicular short-wave single-channel direction finding devices can not cope with the single side band signals satisfactorily.
现有的车载短波单通道测向设备使用传统测向算法,对单边带信号的测向结果比较差。
Thus FM radio at relatively high frequencies is used for local stations but does not travel far, whereas short-wave radio, at low frequencies, can stretch around the world.
因此地方无线电台使用频率相对较高调频无线通讯,而低频短波无线电则可以遍及全球。
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.
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。
This system has applied to the national radio short-wave and monitored in the first project actually, through using and measuring, the actual effect is stable % effective and excellent.
本系统实际应用于全国无线电短波监测第一期工程项目中,经过应用和检测,实际效果良好,运行稳定并受到广泛好评。
This allows more solar radiation to penetrate the earth's atmosphere, which promotes a climate forcing effect (more short wave radiation reaches the earth, warming land and sea-surface temps).
这使得更多的太阳辐射穿透地球的大气层,从而促进气候强迫作用(更短波辐射到达地球,升高陆地和海洋表面气温)。
In comparison with ordinary laser processing, the advantages of ultrashort pulse and short wave to all kinds of materials are presented.
对比普通激光加工,超短脉冲和短波长对各种材料的优势作用日趋显现。
White opal may show a white, greenish, bluish or brownish fluorescence in long wave and short wave ultra-violet light.
白欧泊在长波和短波紫外光下显示白色、绿色、蓝色或褐色的荧光。
Frequency hopping technology has served in all kinds of communication systems with its excellent interference resistance ability, especially in short wave communication system.
跳频通信技术因其具有良好的抗干扰能力而被广泛应用于各类通信系统中,尤其是短波通信中。
It is inevitable that the communication system is disturbed, especially the short wave communication, its signal is easily disturbed by the noise.
通讯系统中的干扰是不可避免的,尤其是短波通讯,信号更容易受到噪声的干扰。
The test showed that in the region dominated by sub tropical high, short wave radiation was the main cause of the SST increase, surface warm water convergence played a secondary role.
试验表明,副热带高压控制的天气情况下,短波辐射对该海区夏季异常高温的形成起主要作用,暖水辐聚的贡献占第二位。
The trend of electronic reconnaissance in short wave is wide band reconnaissance, and channelized technology is the key of it.
宽带侦收是短波段中电子侦收的趋势,而其中信道化技术是关键环节。
The soft judgment decoding which improves the features of short wave channels is elaborated. Several less complicated practical soft judgment decoding schemes are given.
论证了软判决译码对短波信道性能的改善,给出几种复杂程度较低的实用软判决编译码方案。
At present, the main means for time transfer are long or short wave, telephone, GPS, double star etc.
目前,国内外时间传递方式主要有长波授时、短波授时、电话授时、双星比对、GPS时间信息。
The results obtained show that the smoothing restrain is mainly for short wave noises and no energy transfer happens in wavenumber space.
结果表明,光滑化主要是抑制短波噪声,并且它不引起静电波能量在波数空间的转移。
This infrared heaters combine a carbon heater and a short wave infrared heater in the proven quartz glass twin tube.
该产品结合了碳加热器和短波,行之有效的石英玻璃双管红外线加热器。
Basing on development trend of short wave frequency hopping radio, this paper analyses some key techniques about the new type short wave digital frequency hopping radio.
本文根据短波跳频电台的发展趋势,重点分析了研制新型短波数字跳频电台所涉及的若干关键技术问题。
Basing on development trend of short wave frequency hopping radio, this paper analyses some key techniques about the new type short wave digital frequency hopping radio.
本文根据短波跳频电台的发展趋势,重点分析了研制新型短波数字跳频电台所涉及的若干关键技术问题。
应用推荐