Regular repeating actions such as sound waves, light waves, or radio waves have a certain frequency, or number of waves per second.
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。
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.
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。
In optical astronomy, using a telescope and observing the stars that way, we rely on visible light waves.
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。
激光雷达使用光波。
Diffraction, too, occurs in light waves .
衍射也是由光波产生。
He devised an instrument to measure light waves.
他发明了一种测量光波的仪器。
He devised an instrument to measure light waves.
他发明了一台仪器来测量光波。
Unlike radio, light waves will not penetrate walls.
可见光不同于无线电波，无法穿透墙壁。
It was once believed that light waves traveled through the ether.
人们曾经相信光波在以太中穿过。
I like purple, purple is the shortest wavelength of visible light waves.
我喜欢紫色，紫色是波长最短的可见光波。
Radar waves go through clouds or fog quite well, whereas light waves do not.
雷达波能很容易地穿云破雾，而光波则不能。
Radio waves are similar to light waves except their wave length is much greater.
无线电波与光波相似，但无线电波的波长要长得多。
Radio waves are now used to explore the universe, much as light waves are so used.
就像光波被用于探索宇宙一样，人们也用电波来探索宇宙。
Any photosynthetic life would be adapted to take advantage of the available light waves.
依赖光合作用的生物则利用可用光波来适应环境。
A radio wave is of the same family as heat waves, light waves, X-rays and gamma rays.
无线电波与热波、光波、X射线和伽马射线一样都属于同一族系。
This wave pattern occurs often in nature, including ocean waves, sound waves, and light waves.
这种波形往往出现在自然界中，包括海浪、声波和光波。
The longest light waves we can see are red, the shortest violet, and in between are other colors.
可见光波中最长的是红色，最短的光波是紫色，其他颜色的光波介于这二者之间。
Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
At the time, people believed that light waves, just as sound waves, ocean waves or shock waves, had to travel through a medium.
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。
When light waves were projected onto the disc, the direction of the electric field within the waves aligned with the gold nanorods.
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。
Conventional lasers use a so-called "gain medium," such as a semiconductor material, to produce a focused beam of light waves.
传统激光器通过一种所谓的“增益介质”(如半导体材料)产生聚焦光束。
Just like we see destructive interference with water waves or with light waves, we can also see destructive interference with orbitals.
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。
Our eyes can only feel the light waves (electromagnetic wave) with wavelengths ranging from 4000 to 7000a, which we call visible light.
人的眼睛只能感受波长范围在4000 - 7000埃的光(电磁)波-我们称为可见光。
Time and frequency are inversely related; that is, smaller units of time (or faster oscillations of light waves) result in larger frequency Numbers.
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。
If two light waves are coherent, the waves have the same frequency, and the peaks and troughs of light waves are exactly aligned with one another.
如果两束光是相干光，那么它们具有相同的频率，并且相互间的波峰和波谷步调一致。
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.
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.
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。
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