为此， 研究影响现场照相的构图因素，并在实际拍摄中加以运用是十分必要的。
Therefore it is necessary to make use of these skills in crime scene photography.
在发布会现场，乔布斯发布能够录像并直接上传到YouTube新款iPod nano，该产品将会与网络设备公司思科生产的Flip照相机竞争。
On stage, he announced a new iPod nano that is able to record video and upload it directly to YouTube, competing with the Flip camera by network gear company Cisco.
根据日食专家、国家地理杂志授权人詹·帕萨扣夫的提示，观测者也可以通过制作小孔照相机的方式来观测日食的现场影像。
Observers can also look at live images of the eclipsed sun by making simple pinhole cameras, according to eclipse expert and National Geographic grantee Jay Pasachoff.
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