These are the ones that are coming right out at you, so this is going to be on a second pi orbital.

它们朝向你们，所以这里有另一个π键。

麻省理工公开课 - 化学原理课程节选

The so called ones column on the right, the tens column next to it, the hundreds column, the thousands column, and so forth.

右边一位代表一，旁边代表十,接下来百，千，如此等等。

哈佛公开课 - 计算机科学课程节选