Then I do the same thing on line two and I declare something called "y."
然后我在第二行做了同样的事情，我声明了“y。”
The most important line is line 51, where the Y-axis scaling factor is calculated.
最重要的是第51行，它计算y轴的比例因子。
A line of punch positions parallel to the Y datum line of a punch card.
基准线平行，在地平面或者基准平面上。
A line of punch positions parallel to the Y datum line of a punch card.
基准线平行，在地平面或者基准平面上。
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