短波收音机用的波段是20–50米。
1924年，他说服英国政府用他最新发明的短波无线电技术来建立无线电台链，环绕世界。
In 1924 he convinced the British government to encircle the world with a chain of wireless stations using the latest technology that he had devised, shortwave radio.
小的发出短波(蓝光)。
短波收音机如今看来可能像是一种很古老的技术。
A shortwave radio might seem like ancient technology these days.
我们应该有轻便的短波通讯设备。
这部短波收音机是所有当中最贵的一部。
这台收音机可以接收短波、中波和长波。
我独自一人，但我并不寂寞，因为我有一个短波收音机。
I am alone, but I'm not lonely at all, for I've got a shortwave radio.
早上的太阳光里面包含了高浓度的短波蓝光。
In the morning, sunlight contains high concentrations of this blue light.
短波电台里开始传出邱吉尔那抑扬顿挫的声调。
Churchill's cadences began to roll out of the short-wave radio.
该组织为世界上一些最贫穷地区的学校和社区提供短波收音机。
It provides shortwave radios to schools and communities in some of the poorest areas of the world.
这意味着黑色素吸收更长波长的光线，较短波长的光线则被散射。
This means longer wavelengths of light are absorbed by the dark back of the eye, while the shorter wavelengths are scattered.
短波通信是军事通信领域中一种重要的无线通信技术。
Short-wave communication is an important wireless communications technology in the field of military communications.
我第一次对短波收音机萌生兴趣是在查尔斯顿度假期间。
I first became interested in shortwave receivers when I spent a vacation in Charleston, South Carolina.
较大尺寸晶体发射长波光线(红光)，小晶体则发射短波光线(蓝光)。
Large ones emit long wavelengths (red light). Small ones emit shorter wavelengths (blue).
广告里经常用一些故作神秘的缩略词，颇有冷战时期短波电台暗语播报的氛围。
Mysterious acronyms give the ads the flavor of coded Cold War era shortwave radio broadcasts.
当金色纳米微粒收到肉眼不可见的更短波长的光照射时，它们将被激发并发出紫光。
When shorter wavelengths of light, invisible to the human eye, hit the gold nanoparticles, they get excited and start to glow violet.
同样，无线电台用短波把节目传送到遥远的地方，到达世界的各个角落。
Similarly, radio stations transmit programs to distant countries in short waves which can travel all around the world.
短波红外成像技术可以探测到可见光与热像仪波段之间人眼无法看到的反射光波长。
SWIR technology detects reflected light at wavelengths that the human eye cannot see, in wavelength bands between visible and thermal cameras.
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。
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.
短波通信由于其天波传播特性，在通信领域具有其它通信手段无法替代的地位。
High frequency (HF) communications play an important role in the field of their communications because of their skywave propagation characteristics.
我租了一个短波收音机，租金不贵，但需要支付50英镑的押金，这对我来说可是一大笔钱。
I rented a shortwave radio, which wasn't too expensive but required a fifty-pound deposit, a lot of money for me.
不能采用更短波长的激光进行芯片刻蚀已经限制了（芯片制造商）在硅晶上设计更精细的电路。
The inability to etch chips with lasers in the shorter wavelengths has limited how precisely they can design circuits on silicon.
当我在电波里听到世界各国风格各异的音乐歌曲时，我充分地感受到了收听短波的乐趣。
I really enjoy listening to songs and music from the different countries around the world that I find on the shortwave.
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.
外面挺冷的，还下着雨。为了找点儿事儿打发时间，我打开了短波收音机，胡乱调着频道。
It's cold and raining outside, so for something to pass the time, I switch on my old shortwave radio, and turn the dial aimlessly.
外面挺冷的，还下着雨。为了找点儿事儿打发时间，我打开了短波收音机，胡乱调着频道。
It's cold and raining outside, so for something to pass the time, I switch on my old shortwave radio, and turn the dial aimlessly.
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