Most of the time the lasers are dark, producing areas of light with low intensities with the occasionally brief but brilliant flashes of high - intensity light.
大部分的时间里激光是暗的，产生低强度的光区伴随着偶尔短暂的高强度光的闪烁。
Thee total internal reflection phenomenon, as well as the high purity of the core glass, enables light to travel long distances with little loss of intensity.
全内反射现象与核心玻璃的高纯度一样，使光线几乎无强度损耗传递长距离成为可能。 。
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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