You might be able to draw curves that are perpendicular to it.
或许你可以画出每点都垂直于向量场的曲线。
I teach children how to draw curves before teaching them how to write letters.
我教小朋友写字母之前会先教他们画曲线。
Provide technical platform for users to draw different types of curves.
提供技术平台，以供用户绘制不同的类型曲线。
It is difficult for the computer to draw break lines, because they are irregular curves.
因波浪线是不规则的曲线，所以计算机辅助绘图有一定的困难。
It is difficult for the computer to draw break lines, because they are irregular curves.
因波浪线是不规则的曲线，所以计算机辅助绘图有一定的困难。
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