纳米比亚有一个仅44.5每平方英里人口密度，第三低。

Namibia has a population density of just 44.5 people per square mile, the third lowest.

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南达科他州仅产生了1320万公吨的二氧化碳，是美国第三低的。

South Dakota only produced 13.2 million metric tons of carbon dioxide, the third-lowest in the country.

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科罗拉多大学航天工程科学系的科研教授詹姆斯·马斯兰尼克说：“在过去两年多的时间里，虽然多年形成的冰川的总面积下降到了记录的第三低，但是更年轻一点的冰川面积却稍稍有所回升。

While the total coverage of multiyear ice is the third lowest on record, the amount of younger multiyear ice has rebounded somewhat over the last two years.

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s But it just turns out that the 4 s is so low in energy that it actually surpasses the 3 d, because we know the 3 d is going to be pretty high in terms of the three shell, and the 4 s is going to be the lowest interms of the 4 shell, and it turns out that we need to fill up the 4 s 4s before we fill in the 3 d.

但是结果是,能量较低,4s是第四层最低的，因为我们知道3d在第三层,是非常高的，4s是第四层,最低的，结果是我们在填充3d之前,需要先填充。

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