越多的光直接出射而没有被反射器反射后再出射的话，就会得到更高的效率。
The more light that exits directly without being controlled by the reflector, the higher the efficiency.
Murphy希望在每3千万光子中至少有一个能碰到反射器后回地球。
Murphy is hoping that at least one out of every 30 million photons hits a reflector and bounces back toward Earth.
Murphy希望在每3千万光子中至少有一个能碰到反射器后回地球。
Murphy is hoping that at least one out of every 30 million photons hits a reflector and bounces back toward Earth.
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