A glass bulb filled with finely shredded aluminum or magnesium foil that is ignited by electricity to produce a short-duration high-intensity light flash for taking photographs.

闪光泡一种内部装有铝箔或镁箔的精细碎片的玻璃灯泡，用电点燃以发出短暂的高强度闪光，从而拍摄照片。

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The measuring method and principle of efficient intensity of flash source are described, and a flash efficient intensity tester is introduced in detail.

论述闪光光源有效光强的测量方法及原理，并详细介绍我所自行研制的闪光有效光强测定仪。

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By analogy with the method of gunpoint noise measurement. reasonable indexes for assessing the size and intensity of gunpoint flash are put forward.

类比于枪口噪声测试方法，较科学地提出了评价枪口火焰强弱的评价指标。

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Since every isotope that spews gamma or X rays or charged particles does so in a unique way--an atomic fingerprint, of sorts--the color and intensity of the flash tells the detector which isotope is present and in what quantity.

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