The Kepler problem is solved by vector method and without the Binet equation.
直接利用矢量解法求解开普勒问题，不必借助于比奈方程。
The problem is, Kepler collects so much data that researchers can't comb through it all to see what's really a planet and what's something else blocking a star's light.
问题是，开普勒收集了太多数据以至于研究者无法整理出究竟是行星还是别的物体挡住了恒星的光线。
The Kepler mission has the opposite problem: it can measure a planet's size, by how much starlight it blocks, but not the mass.
而开普勒行动则存在截然相反的问题：它能通过一个行星的遮光情况测出它的体积，却不能得出其质量。
The Kepler mission has the opposite problem: it can measure a planet's size, by how much starlight it blocks, but not the mass.
而开普勒行动则存在截然相反的问题：它能通过一个行星的遮光情况测出它的体积，却不能得出其质量。
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