A small circular caldera crowns the volcano. A little more than a kilometer across, the caldera is defined by walls that range from 80 to 300 meters high.
山顶有小圆形火山口，直径大约1千米，周围是80到300米高的墙（喷发岩形成的）。
Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
爱因斯坦电梯；炮火射程；匀加速度和圆周运动的量纲分析。
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