time exposure

基本解释

But if your photographic set gives a possibility to shoot with the long-time exposure and has high-quality matrix – you can make impressive pictures of the night sky.
如果你的机器支持长时间曝光的拍摄，并且有高质量的反光阵列——那么你拍摄出令人印象深刻的夜空。
Captured in this 60 second time exposure made on April 14, a yellow-tinged Mars and M44 are near the center of the field, seemingly just beyond the reach of a pine tree.
这张曝光60秒的照片摄于4月14日，微黄色调的火星和M44接近视场的中心，看似就在松树的顶端之外。
It provides real-time exposure data from industrial radiological isotopes as well as isotopes that can potentially be used by terrorists.
它可以提供实时的工业辐射同位素方位数据，同时也可以探测恐怖份子有可能利用的潜在的同位素。
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Now, why is the time less on second exposure?
为什么再次免疫花费的时间少呢?
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an exposure of a photographic film for a relatively long period, usually a few seconds