They say the United Nations complex humanitarian operation in this conflict-ridden province cannot function efficiently without their help.

VOA: standard.2009.03.28

You get these plots by taking the wave function times its complex conjugate and operating on that.

你也可以得到这些，通过波函数乘以,其共轭进行如上操作。

麻省理工公开课 - 固态化学导论课程节选