尽管这向天文学家证明了金星被一层厚厚的气体所包围，这层气体使太阳光在金星周围发生折射，但这两种效应都使精确的时间控制成为不可能。
While this showed astronomers that Venus was surrounded by a thick layer of gases refracting sunlight around it, both effects made it impossible to obtain accurate timings.
他让一束太阳光通过这个三棱镜，折射到一个白色的表面上，这三棱镜把光事分成了彩虹的颜色。
He sent a beam of sunlight through the prism. It fell on a white surface. The prism separated the beam of sunlight into the colors of a rainbow.
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