"So,that is the good news, that 15 years of investments are bringing visible results as a result of cooperation between national programs, particularly the World Health Organization,UNAIDS, the Global Fund and other partners,".

VOA: standard.2009.12.09

When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.

而我们知道,物体是否对可见光透明，这里是神秘的材料，这里是可见光。

麻省理工公开课 - 固态化学导论课程节选

I care about you. I wanted to illustrate that this is representing different wavelengths in the visible.

很关心你吧，我要说明一下,在视觉上，它们代表了不一样的波长。

麻省理工公开课 - 固态化学导论课程节选

You have to show those visible signs,". Admiral Mullen said the U.S.government is "extremely concerned" about corruption in Afghanistan, and that if the issue is not addressed, any U.S.and international military effort will not succeed.

VOA: standard.2009.11.04

It is now recombined in its very atoms, not merely in its visible and superficial parts.

它的每一个原子都重新组合,而非仅仅进行了表面的，可见的改变。

耶鲁公开课 - 1945年后的美国小说课程节选

Of course what you can imagine is a world in which Venus isn't visible in the morning.

你能想象的是,在某个世界里,金星在早上是看不见的

耶鲁公开课 - 死亡课程节选

And this is exquisitely visible to us in the Nativity Ode.

这在《圣诞清晨歌》里可以很清楚的看出来。

耶鲁公开课 - 弥尔顿课程节选

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.

如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。

麻省理工公开课 - 化学原理课程节选

A sodium chloride crystal is transparent to visible light.

氯化钠晶体对可见光透明。

麻省理工公开课 - 固态化学导论课程节选

And what is going to allow for absorption or some interaction with visible light?

哪些因素会影响吸收,或者与可见光的关系呢？

麻省理工公开课 - 固态化学导论课程节选

The Morning Star is that heavenly body which is the last heavenly body that's still visible as dawn comes in and it begins to get light.

晨星就是,这样一个天体,它是黎明来临,天快亮时,还能看到的,最后一颗星星

耶鲁公开课 - 死亡课程节选

The Evening Star is the, roughly speaking, first heavenly body that's visible in the sky as it gets dark, at least at certain times of the year.

粗略说来,昏星就是,天黑时第一个能看见的天体,至少在一年的某个时间段是这样

耶鲁公开课 - 死亡课程节选

What is the E of visible light?

可见光的能量是多少？

麻省理工公开课 - 固态化学导论课程节选

So as a first pass, the Evening Star is the first star that's visible and the Morning Star is the last star that's visible at the right times of the year.

在最初,昏星是能看到的,第一颗星,而晨星,是最后一颗,当然是在每年的特定时段

耶鲁公开课 - 死亡课程节选

Why is it transparent to visible light?

为什么对可见光透明呢？

麻省理工公开课 - 固态化学导论课程节选

So anything that goes from a higher energy level to 2 is going to be falling within the Balmer series, which is in the visible range of the spectrum.

任何更高能级到2能级2,都是属于Balmer系，它在可见光谱中。

麻省理工公开课 - 化学原理课程节选

Is the soul visible or invisible?

灵魂是有形还是无形？

耶鲁公开课 - 死亡课程节选