有规律的重复活动如声波、光波、无线电波都有一个特定的频率，或者说是每秒的波动次数。
Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
在光学天文学中，在用望远镜观察恒星时，我们依靠的是可见光波。
In optical astronomy, using a telescope and observing the stars that way, we rely on visible light waves.
与可见光波不同的是，这些无线电波可以较容易地穿过太空中的各种气体和灰尘，穿过我们地球的大气层。
Unlike visible light waves, these radio waves can get through the various gases and dusts in space, and through our own earth's atmosphere comparatively easily.
除此以外，当可见光波从这些分子上反射出去时，它会向四面八方扩散。
And on top of that, when that visible radiation bounces off those molecules, it scatters in all directions.
这是一种电磁波(即与光波相同类型的波)。
This is a type of electromagnetic wave (ie, the same type of wave as a light wave).
百合与茉莉在光波的浪花上翻涌。
Lilies and jasmines surge up on the crest of the waves of light.
激光雷达使用光波。
光波和无线电波能被星际气体和尘埃吸收及散射。
Light and radio waves are absorbed and scattered by interstellar gas and dust.
而其它类型的激光器发出的激光波长是固定的。
并已制造了可在红外光和可见光波段工作的隐身器件。
Related cloaks have been made to work with infrared rays and visible light.
这种波形往往出现在自然界中，包括海浪、声波和光波。
This wave pattern occurs often in nature, including ocean waves, sound waves, and light waves.
大部分隐身斗篷都是在非可见光波段隐藏物体。
Most of the invisibility cloaks that have been demonstrated to date conceal objects at frequencies that are not detectable by the human eye.
由于十分苛刻的材料要求，设计可见光波段的隐身斗篷更具挑战性。
Designing invisibility cloaks that can conceal objects from visible light has been more challenging due to the strict material requirements.
通过在“薛定谔的猫”状态下传送光波包，他们做到了这一点。
They did it by teleporting the wave packets of light in a 'schrodinger's cat' state.
透镜(包括我们眼睛中的水晶体)会对不同的光波产生不同程度的折射。
Lenses, including the lenses in our eyes, bend lights of different wavelengths by unequal amounts.
当光波被投射到光盘上时，光波内电场的方向会与金纳米棒相一致。
When light waves were projected onto the disc, the direction of the electric field within the waves aligned with the gold nanorods.
就像我们看到水波，和光波的相消干涉，我们也可以看到轨道的相消干涉。
Just like we see destructive interference with water waves or with light waves, we can also see destructive interference with orbitals.
来自那个时期的可见光延展过广，以至于它的光波达到了毫米、次毫米级别。
Visible light from that time has now been so stretched out that its waves are in the millimeter/submillimeter range.
微细的玻璃纤维中传输的光波几乎可以承载所有的电话和数据流量。
Light flowing in thin threads of glass carries almost all of the telephony and data traffic.
时间和频率是逆相关的，即：时间单位越小(或光波振荡越快)频率数量越大。
Time and frequency are inversely related; that is, smaller units of time (or faster oscillations of light waves) result in larger frequency Numbers.
当时，人们认为，光波就像声波、海浪波或冲击波一样，它们的运行必须穿过介质。
At the time, people believed that light waves, just as sound waves, ocean waves or shock waves, had to travel through a medium.
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.
利用位于夏威夷的凯克天文台，开普勒研究小组精确测量了主恒星光波波长的细微变化。
Using the W. M. Keck Observatory in Hawaii, the Kepler team made precise measurements of minute shifts in the wavelengths of the host star's light.
惠普没有用光缆，而是应用了光波导——数条塑料细丝包以高反光的金属薄膜。
Instead of optical fibre, HP is using waveguides-small strips of plastic with grooves on their highly reflective metallic walls.
在自然物质中，以一定角度进入的光波，进入物质后的角度更小——标志着折射率大于1。
In natural materials, light waves entering at an Angle always bend to plunge more steeply into the material-the hallmark of a refractive index greater than 1.
光速大约为声速的100万倍，因此光波的反射现象可以有效地用来探测目标物及其距离。
Since the speed of light is about a million times as great as that of sound waves, the reflection of light waves may very well be applied in detecting a target and its distance.
这些无线电系统之间就像光波与声波一样彼此区别，比如，人造卫星就无法追踪射频识别标签。
These radio systems are as different from each other as light is from sound, so satellites cannot track RFID tags, for instance.
这些无线电系统之间就像光波与声波一样彼此区别，比如，人造卫星就无法追踪射频识别标签。
These radio systems are as different from each other as light is from sound, so satellites cannot track RFID tags, for instance.
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