It was a continuous light, intensified by reflectors, and eclipsed by shutters at regular intervals.The duration of light was equal to that of darkness.
英
美
释义
那是一盏持续发光的灯,反射器使其发出的光线更强,百叶窗定时开合,使其时亮时暗且亮与暗的时间相等。
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