哈佛医学院表示，蓝光对眼睛有害，因为蓝光会杀死我们视觉所需的感光细胞。
Blue light is bad for our eyes, as it can kill the photoreceptor cells we need for vision, according to Harvard Medical School.
感光材料、数字照相机都是照相器材。
Light-sensitive materials and digital cameras are all photographic equipment.
更小感光元件会使得镜头产生更长焦距的效果。
Smaller sensors 'crop' the scene and make a lens appear to have a longer focal length.
视网膜中有一种特殊的感光细胞具有识别颜色的能力。
The ability to see colors comes from specialized light-sensing cells found in the retina.
今天的相机能够将感光度调到3200并且成像效果很好。
Today's cameras routinely go up to ISO 3200 and deliver great image quality.
有一个好例子是眼睛中的盲点——视网膜中不含感光细胞的点。
One well-known example of this is the blind spot in the eye, which is a point in the retina which contains no sensory cells.
它引用的事实是：在眼睛后部视网膜上的感光细胞是大脑的直接延伸。
It exploits the fact that the light-sensitive cells in the retina at the back of the eye are a direct extension of the brain.
前幕帘落下，后方的感光元件露出，光线进入相机，曝光开始。
The front curtain drops away, revealing the sensor behind, and allows the light to enter the camera, beginning the exposure.
感光元件虽然并非一些人所想的那么重要，但是它却有几个关键的不同。
Sensor size isn't as important as some people would have you think, but there are some key differences.
当用长曝光拍摄的时候，用一个低的感光度可以减少可能出现的像差。
Using a low ISO setting will help reduce the aberrations that can appear when photographing with long exposures.
剑桥大学组的获奖设计使用内置藻类管和一台感光生物反应器来生产氢气。
The Cambridge team's winning design USES in-built algae tubes and a photo bio-reactor to generate hydrogen.
在这样短的曝光下，后幕帘落下，在前幕帘完全打开前遮蔽感光元件。
For such short exposures, the rear curtain starts to fall, covering up the sensor before the front curtain is even fully open.
医院的X光机工作原理是X光射线脉冲穿过人体在射线胶片上感光成像。
Hospital X-ray machines work by passing an X-ray pulse through a body onto radiographic film.
研究者通过调节镜头和感光元件的曲率，就能产生可放大和聚焦的图像。
Researchers coordinate the curvature of the lens and the detector in order to create an image that is magnified and in-focus.
和血脑屏障相同，它是选择性可透的，阻挡血液中的有害物质进入到精致的感光层。
Like the blood-brain barrier, this is only selectively permeable, keeping any toxins in the blood from reaching the delicate photoreceptors.
关于水平细胞的感光性如何参与视觉成像，还需要对视网膜而非单个细胞进行更多研究。
Learning more about how the light sensitivity of horizontal cells contributes to image vision will require studying whole retinas, not just single cells.
如果能有合适的光线通过洞投射到感光器上面的话，你就得到了一张正确曝光的照片。
If the right amount of light gets through the hole to strike the sensor, you get a properly exposed picture.
感光细胞的胞核在这里呈现出青色，而细胞的其他部分呈现出从紫色到淡红色的一系列色彩。
The photoreceptors' nuclei appear here as cyan, and the cells' elongated bodies are in a range of colors, from purple to reddish.
我们的研究工作显示，专门的紫外线感光物质能使皮肤细胞迅速甄别紫外光线并作出反应。
Our work shows that a dedicated UV receptor allows skin cells to immediately detect and respond to UV light.
RPE移植将只能帮助那些仍保留部分可利用感光层的病人，但将来病情更重的病人也可能获益。
RPE transplants would only be helpful for people who still have some photoreceptors left to salvage, but one day even people beyond this stage may benefit.
该研究表明，螳螂虾眼部的特殊感光细胞的作用与DVD机或CD机中所采用的电子感应器的作用类似。
Special light-sensitive cells in mantis shrimp eyes perform similar functions to electronic sensors found in the mechanism of a DVD and CD player, the study said.
写作是一门手艺，而不是艺术，一个将手艺生疏归咎于没有灵感光顾的人不过是在愚弄自己。
Writing is a craft, not an art, and that the man who runs away from his craft because he lacks inspiration is fooling himself.
接着下面是起支持作用的细胞层，叫做视网膜色素上皮(RPE)，它给感光层供给营养并清理其废料。
Underneath is a layer of supporting cells called the retinal pigmented epithelium, or RPE, which nourish the photoreceptors and clean up their waste.
在视网膜中也能发现这些感光物质。它们能迅速刺激皮肤黑色素的生成，保护人体不受太阳光线的伤害。
These light receptors - which are also found in the retina of the eye - immediately prompt the release of melanin, the body's own form of sun protection.
最大（通常也是最贵）的当属全画幅。之所以称其为全画幅，是因为感光元件和35mm胶片尺寸大小相似。
The largest (and most expensive) DLSR format is full frame (so called because the sensor is the same size as a frame of 35mm film).
在红外线摄影中，数码相机上使用的胶片传感器或图像传感器对红外光感光，能让相机拾取人眼不可见的任何光线。
In infrared photography, the film or image sensor used within a digital camera is sensitive to infrared lighting, which allows the camera to pick up any light that's invisible to the human eye.
换上了基因的苍蝇在光线中的磁导航上没有任何问题。这表明，人类的蛋白质仍然能作为感光的磁传感器来起作用。
And the transgenic flies had no problem navigating a magnetic maze when exposed to light-indicating the human protein can still serve as a light-sensitive magnetic sensor.
在17种鲨鱼的视网膜中，最常见的感光体是视杆细胞，这意味着鲨鱼在不同的亮度环境下都可以看得到外界。
Rod cells were the most common types of photoreceptor found in all 17 shark species, which means the predators should be able to see within a wide range of light levels.
如果需要星光轨迹，那么使用大光圈和较高感光度(ISO 200- 400)就能提高每条轨迹的亮度。
If star trails are desired, using a large aperture and higher sensitivity (ISO 200-400) can enhance the brightness of each streak.
如果需要星光轨迹，那么使用大光圈和较高感光度(ISO 200- 400)就能提高每条轨迹的亮度。
If star trails are desired, using a large aperture and higher sensitivity (ISO 200-400) can enhance the brightness of each streak.
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