这幅图像是环月轨道探测照相机(LROC)拍摄的，它包括一对窄角照相机和一个广角照相机。
This image was taken by the Lunar Reconnaissance Orbiter camera, or LROC, which consists of a pair of narrow-angle cameras and a single wide-angle camera.
限制因素之一就是观察角度，这与使用照相机的情况类似：长焦镜头的视野比广角镜头的观察角度要窄得多。
One limiting factor is the viewing Angle, which is comparable to using a camera lens: a telephoto lens has a narrower view than a wide-angle lens.
你设置光圈(用于指定有多少光进入照相机镜头)——你想照一幅漂亮、浅景深或广角的照片吗？
You set the aperture, which dictates how much light comes into the camera-do you want a nice, shallow depth-of-the-field, or everything in focus?
这就意味着把设备藏在他的身体上：“我开始使用超广角全景照相机，即便把它藏在围巾下或是胳膊下也能够拍出照片。”
That meant being able to hide his equipment on his body: "I began using a super-wide panoramic camera, which allowed me to photograph scenes with the camera wrapped in a scarf or hidden under my arm."
哈勃太空望远镜上的新一代照相机——广角相机3号（WFC3），改变了上述状况，该相机是2009年安装上去的。
The Hubble's new Wide Field Camera 3 (WFC3), mounted on the space telescope in 2009, changed all that.
由广角行星照相机2和高级巡天照相机拍摄的哈勃综合数据档案。
A composite of archival Hubble data taken with the Wide Field Planetary Camera 2 and the Advanced Camera for Surveys.
锗还用作合金组分、萤光灯的磷光粉和作照相机广角镜头和显微镜物镜等光学玻璃组分。
It is also used as a component of alloys, in phosphors for fluorescent lamps, and in the glasses of certain optical components, such as camera and microscope lenses.
锗还用作合金组分、萤光灯的磷光粉和作照相机广角镜头和显微镜物镜等光学玻璃组分。
It is also used as a component of alloys, in phosphors for fluorescent lamps, and in the glasses of certain optical components, such as camera and microscope lenses.
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