实际上,每个晶体就像一个百页窗,或是让光通过、或是把光挡祝。
Each crystal, in effect, ACTS like a shutter, either allowing light to pass through or blocking the light.
首先大气平面挡在中间,其中的云、烟、霾会挡住远处星星和近处行星发出的光。
First off, the atmosphere plane gets in the way, what with its clouds and smoke and haze than can block light from distant stars or nearby planets.
铅挡野输出因子与标准限光筒和铅挡野大小有关;
Output factor of lead block fields was related to standard applicators size and lead block fields side;
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