These would then fall down to the base of the mantle like sparkly hailstones.

然后它们会像闪闪发光的冰雹一样落到地幔的底部。

In a few minutes, rocks were falling like hailstones around them and around us.

几分钟内，石块像冰雹一样落在他们和我们身边。

And speaking of bizarre, the largest hailstone ever found measured in at roughly 20 cm, weighing almost 1 kg.

说到离奇，目前发现最大冰雹大约20cm，重量近1公斤。

How accurate is the recreation of these hailstones?

这些冰雹的再现有多准确？

Hailstones have been measured up to 20 centimeters in diameter.

据测量，冰雹的直径可达20厘米。

So the bigger the hailstone, the faster its terminal velocity.

因此冰雹越大，其终端速度越快。

Meanwhile, giant hailstones pounded the main camp.

与此同时， 巨大的冰雹袭击了主营地。

So this is the United States and current world record hailstone that was found in Vivian, South Dakota.

- 这是美国和目前世界纪录的冰雹，是在南达科他州维维安发现的。

Captain Lewis reported that the hailstones were as wide as seven inches.

刘易斯船长报告说冰雹有七英寸那么宽。

Out of the brightness of his presence clouds advanced, with hailstones and bolts of lightning.

因他面前的光辉，他的厚云行过，便有冰雹火炭。