It is the largest national park in the lower 48 states.

它是本土48个州中最大的国家公园。

There might yet be a lower energy state we don't see.

可能还有一个我们看不到的更低的能态。

The Associated Press looked at weather station data across the lower 48 states.

美联社分析了本土48个州的气象站数据。

This happens because the atoms are falling into lower and lower energy states as they cool down.

这是因为原子在冷却时进入越来越低的能量状态。

To help put the numbers into some perspective, Australia is of comparable size to the lower 48 US states.

为了让我们对这些数字有更全面的了解，澳大利亚的面积与美国本土 48 个州相当。

The average temperature for the lower 48 states from December through February was 36.8 degrees, 4.6 degrees above normal.

从去年12月到今年2月，本土48州平均气温36.8度，比正常高出4.6度。

Those losses are more apparent in the lower basin states, but the impacts are being felt across the entire waterway.

这些损失在盆地下游各州更为明显，但整个水道都受到了影响。

The researchers then examined how each of the lower 48 states affects pollution and people's health in every other state.

然后，研究人员调查了美国本土48个州中的每个州如何影响其它各州的空气污染和居民健康状况。

So the first electron wants to go into the lowest energy state.

所以第一个电子想要进入最低能态。

And then the first two, or the electrons in the lowest energy state, will be 1s2.

然后前两个，或处于最低能态的电子，将是 1s2。

He said the missile could not “reach the lower 48 states or the large islands of Hawaii.”

他说导弹无法“到达本土 48 个州或夏威夷大岛”。

And it might stay there or it might just want to go back to its lower energy state.

它可能会留在那里，或者可能只想回到较低的能量状态。

And let's say I could put the second cube at a low energy state here.

假设我可以在这里将第二个立方体置于低能量状态。

Adirondack Park is the largest protected area in the lower 48 states, larger than Yellowstone, Everglades, Glacier, and Grand Canyon National Parks put together.

阿迪朗达克公园是本土48个州中最大的自然保护区，它比黄石公园、佛罗里达大沼泽地、国家冰川公园和大峡谷国家公园合并在一起的面积都要大。

A total solar eclipse will sweep across the country, the first to be visible from the lower forty-eight states since 1979, 38 years ago.

一场日全食将横扫这个国家，美国本土48州上次观看到还是在1979年，38年前。

Mother nature commonly serves these up in the Arctic but it takes several days of subfreezing temperatures for them to form in the lower 48 states.

大自然母亲通常在北极提供这些食物，但在美国本土的48个州，它们需要几天低于冰点的温度才能形成。

In the 19th and 20th century, fear of the giant predators drove pioneers to hunt them to near extinction in the lower 48 states.

在 19 世纪和 20 世纪，对巨型食肉动物的恐惧驱使拓荒者在美国本土 48 个州捕杀它们，使它们濒临灭绝。

Well, if a molecule is going to be at its lowest energy state by forming a double bond, it has a nice simple solution.

好吧， 如果一个分子要通过形成双键处于最低能量状态，它有一个很好的简单解决方案。

And then we, in the last video, we said, OK, the electrons fill up the orbitals from lowest energy state to high energy state.

然后我们在上一个视频中说，好吧，电子从最低能态到高能态填满了轨道。

You can barely see it there, but it's a sphere around the nucleus, and that's the lowest energy state that an electron can be in.

你在那里几乎看不到它，但它是一个围绕原子核的球体，这是电子可以处于的最低能量状态。