... 构造 structure; construction; con ... 陨石冲击坑 meteorite impact crater 古陨石冲击坑 fossil meteorite crater ...
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What appeared on his screen was something typically seen only on our own moon and other planets — a meteorite impact crater 148 feet across.
他的屏幕上出现的是一些我们通常在月球和其它行星上看见的东西- - -一个148英尺宽的陨石坑。
An iridium-enriched sediment layer and a large impact crater in the Yucatn provide evidence that a large meteorite struck Earth about 65 million years ago.
尤卡坦半岛上富含铱的沉积层和一个巨大的陨石坑提供了证据，证明了约6500万年前，一颗大型陨石撞击了地球。
The crater was formed by a meteorite impact billions of years ago, and if there were water on the planet back then, it would have accumulated in the crater, turning it into an evaporative lake.
这一撞击坑是由几百万年之前一颗陨石的撞击形成的，如果当时这颗星球上有水，这些水可能已经聚集到了撞击坑里，使其变成一个蒸发湖。
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