The Lower East Side Tenement Museum is one of the smaller museums in New York.
VOA: special.2010.08.25
The string is vibrating higher when it's exactly twice what the lower one is.
高音弦的震动频率,正好是低音弦的两倍
One is a little bit higher and one is a little bit lower than they are in the atomic situation.
一个有点高,一个有点低,相比他们是原子状态的情景而言。
Roosevelt and Churchill first met when they were lower-level officials during World War One.
VOA: special.2011.07.07
If you're comparing two portfolios with the same expected return, then you want the one with the lower variance.
比较两个有相同预期收益率的投资组合时,你会选择方差小的那一个。
When the city was founded about one thousand six hundred years ago, the level of the Adriatic Sea was almost two meters lower than it is today.
VOA: special.2009.04.22
Energy may be favoring reaction in one direction, toward let's say products that have lower energy.
能量上的变化可能支持反应,向着产物具有更低能量的方向进行。
"And it is a tax code that says you should pay lower taxes if you create a job in Bangalore,India than if you create one in Buffalo,New York."
VOA: standard.2009.05.04
If I looked within the skin, one of the lower layers of your skin, the connective tissue layer, you'd find many fibroblasts there and they're just waiting in a more rounded shape than this, just waiting to do their job.
如果观察皮肤,更深处的一层细胞,结缔组织层,就能看到许多成纤维细胞,它们平时形状接近圆形,时刻准备着去完成自己的任务
But we could, for example, look at a case where we have several different structures that look pretty good, and the one we want to determine as being the lowest energy structure is the one in which the absolute values of the formal charges are going to be lower, so essentially that they have less charge separation.
但是我们可能,比如,遇到一种情况,有好几个候选的路易斯结构看起来都挺好的,这时候我们就需要,通过比较哪个形式电荷的绝对值更低,来决定哪个结构的能量更低,本质上这个结构中分开的电荷更少。
So it's that the irreversible efficiency is lower than the reversible one.
所以不可逆过程的效率,小于可逆过程的效率。
So that explains why they're so reactive, they're all very willing to give up that one s orbital and then drop to a lower energy level.
这就解释了它们的化学性质为什么非常活泼,它们都很愿意失去那个,s,电子,然后降到更低的能级上去。
So if we don't have to hybridize one of the p orbitals, we can actually end up with a lower energy situation, because now these s p 2 orbitals are 1/3 s character, and only 2/3 p character, instead of 3/4.
我们的杂化轨道就有更多的p轨道成分,所以它们的能量更高,如果我们不杂化这个p轨道,我们可以得到一个能量更低的情况。
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