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开普勒第二定律
时间：2021-12-28 17:03
关键词：
科学发展简史
历史学
GPS原理及其应用
测绘科学技术
答案解析
<p> 是德国天文学家开普勒通过观测发现的行星运动三条定律之一，亦称行星运动面积定律。它指出：在相等时间内行星与太阳联线所扫过的面积相等。</p>
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