So, we can say that a circle is a good approximation for a 1 s wave function.

所以我们说一个圆是，对1s波函数的好的近似。

youdao

It makes sense to draw the wave function as a circle, because we do know that 1 s orbitals are spherically symmetric.

把波函数画成一个圆是有道理的，因为我们知道1s轨道是球对称的。

youdao

The circle and other rigorous geometrical forms are the basic forms of Tadao Ando 's art presentation.

“禅圆”和其他严密的几何形式构成了安藤忠雄艺术表现的基本形式。

youdao

Now take that circle that you have just created-- Can you see? That's a circle.

把这个围起来的圆圈-,看到吗？，这是个圆圈。

哈佛公开课 - 幸福课课程节选

We know it's going around in a circle because if I find the length of this vector, which is the x-square part, plus the y-square part, I just get r square at all times, because sine square plus cosine square is one.

我们之所以知道它做圆周运动,是因为我求出了这个矢量的模长,也就是 x 的平方加上 y 的平方,我就得到了它在任意时刻的模长平方,因为正弦平方加余弦平方始终等于1

耶鲁公开课 - 基础物理课程节选

Joseph Lowery, part of King's inner-circle at the SCLC.

CNN: Why conservatives call MLK their hero

But Mr Nazif is a notable member of the younger Mubarak's circle - as are Investment Minister Mahmoud Mohieldin and Foreign Trade and Industry Minister Rashid Muhammad Rashid.

BBC: NEWS | Middle East | Mubarak swears in new government

They're near the visitor's on-deck circle, prime foul ball territory.

NPR: Red Sox Game Locks in a Father's Day Memory