So instead, these would be canceling out wave functions between the two, so we would end up with a nodal plane down the center.

相反，两者之间的，波函数会相互抵消，所以我们在中间会得到一个节面。

youdao

Sigma as being cylindrically symmetric about the bond axis, and it's important to point out that it has no nodal plane across this bond axis.

键是，So, we, talk, about, a, sigma, bond，关于键轴圆柱对称的，需要着重指出的是，而且沿着键轴是没有节面的。

youdao

The reason that it's sigma is if you look at the bonding axis here, is that there is no nodal plane along the bonding axis.

它是sigma键的原因是，因为如果你看键轴，上面是没有节面的。

youdao