if you're at X, let's just call you Mr. X, just to make it clear, so Mr. X is the person at position X.
如果你在X,就叫X先生,只是为了方便区分,所以X先生在X位置上
And so I went through the math on this and said suppose I wanted to be really sloppy and I wanted to say if the delta X, the uncertainty in position is on the order of one angstrom.
我算完它,并说假如我想很草率,并且我想说如果x的增量,即位置的不确定度,相当于一埃。
It also tells you that if you compress the spring, compress it means x is now-- x is measured from this position, where the spring is neither compressed nor expanded.
它还能告诉你,如果压缩弹簧,压缩就意味着现在 x...,x 是从这个位置开始算的,在这个位置弹簧既没有压缩也没有伸长
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