call if minus

基本解释

If you call this plus, then if you get a minus sign, you know that the velocity is in the opposite direction.
你若称此为正号，你若想要一个负号，你们知道的,相反方向的速度。
Similarly, if m is equal to either plus 1 or minus 1, py we would in turn call it the p y orbital, or the p x orbital.
类似的，如果m等于+1或，我们可以叫它，或者px轨道。
The magnitude is one, of course and the momentum, if I leave this off we would call that minus one because it's a one-dimensional problem.
大小是1，而动量是，如果我们忽略不计，可把它称作负一,因为这是一维问题。

1 Similarly, if m is equal to either plus 1 or minus 1, py we would in turn call it the p y orbital, or the p x orbital.
类似的，如果m等于+1或，我们可以叫它，或者px轨道。
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