他首先可能想到的是用灯笼或探照灯制造光源。
The first one that might occur to him is to manufacture light, to use a lantern or a searchlight.
在同一时期内，X 射线光源亮度的增加速度要快得多。
The increase in brightness of the x-ray sources over the same period has occurred far faster.
整个装置——光源和灯具——必须换掉，而这一提议绝不便宜。
The whole fixture must be replaced—light source and luminaire—and this is never an inexpensive proposition.
我们不得不遮蔽所有其他的光源，才能看到这个原子非常暗淡的光线。
We have to cancel all other light sources to see this very, very dim light from the atoms.
在几天的测试中，指示器或跟踪器跟踪一个红外光源，并引导激光束击中目标。
During tests over several days, the pointer or tracker tracked an IR source and directed a laser beam at that source.
与用作被人识别的信号相比，如果用作照亮路途的头灯的话，光源必须要明亮很多。
The light source must therefore be immensely brighter if it is to be used as a headlight to illuminate the path, than if it is to be used as a signal to others.
夜间，仔细眺望地平线，寻找诸如火和路灯之类的人造光源，然后朝光污染造成的光亮走。
At night, scan the horizon for artificial light sources, such as fires and streetlights, then walk toward the glow of light pollution.
正如照明专家霍华德·布兰德斯顿指出的那样：“一般而言，没有不好的光源，只有不好的应用。”
As lighting expert Howard Brandston points out, "Generally, there are no bad sources, only bad applications."
对于较冷的光源（蓝或绿色），你会让相机给照片增加暖色，而在暖光源下，你要让它给照片降温。
For cooler (blue or green) light, you'll tell the camera to warm things up, and in warm light, you'll tell it to cool down.
这种方法使用了纽约布鲁克黑文的国家同步加速器光源产生的强大的X射线。
The process involved using intensive X-ray light produced at the National Synchroton Light Source in Brookhaven, N. Y.
这些红外光源绝大部分都是星系。
The vast majority of these infrared extended sources are galaxies.
环境反射：由环境光源反射的光线。
Ambient reflection: The light that is reflected by an ambient light source.
LED是电光源，它们只能照亮一个方向。
LEDs are point lighting sources; they shine in only one direction.
下图中，光源来自左方。
In the simple diagram below, we can see that the light source is coming from the left.
远期目标是利用室内光源放出的可见光传输数据。
The long-term hope is to transmit data using visible light emitted by indoor lighting.
高光能平衡阴影，应该位于物体靠近光源的边缘。
Highlights can help balance shadows and should be used on the edges of objects closest to the light source.
光源与被摄体的相对大小，决定了照片的整体效果。
The size of your light source, relative to your subject, affects the overall look of the picture.
但是细看之下，他发现那个光源并不在他期望的地方。
But the more he looked, the more he realized that the light was coming from the wrong place.
不过火星比遥远的恒星距离我们更近，光源也更为扩展。
But Mars is much closer than the distant stars and an extended source of light.
你可以尝试对焦在与中心物体距离相近的任何一个光源上。
One can try focusing on point light sources at a similar distance to the subject of interest.
你们可以在底部看到光源，在屏幕上有两条缝，很细的缝。
Here you have a light source at the bottom and here you have a screen with two slits in it, very small slits.
半导体激光器主要用做医用和工业用固体激光器的光源泵。
The primary application for the diode laser bar is as a pump light source for use in solid-state lasers for medical and industrial applications.
起居室照明采用的是不同类型的低亮度光源与自然光相结合。
The living room mixes different types of low-level lights with natural light.
真正的光源是炉底的火，小小的炉灶上涂着黄色绿色的釉彩。
The real light comes from the fire, at the bottom of a small stove adorned with yellow and green enamel.
在低放大率的情况下，扩展光源往往显得更亮一些。
Extended objects will always appear brighter at lower magnifications.
他要求躺在他机器下方的10位志愿者凝视一个光源45秒钟。
He asked ten volunteers to stare at a point of light for 45 seconds as they lay under his machine.
尽管研究者不清楚光何时离开光源，他们仍然可以比较到达时间。
Though researchers do not know when the light left its source, they can still compare arrival times.
欧兹坎用LED(发光二极管)作为光源，以此制造细胞的阴影。
Ozcan USES an LED as his light source, creating cellular shadows.
大光源就是所谓的柔光，也就是亮部与阴影之间的过渡比较柔和。
This is generally because a larger light source will create a smoother transition between light and shadow, or what you might call softer light.
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