首先，为使用矢量图的指针编写代码。

First, code a needle using vector drawing.

youdao

好的，所以让我来做矢量图。

Ok, so let me take the column picture.

youdao

当然，我也不是经常能够由矢量图直接得出答案的。

Of course I won’t always be able to see from the column picture either.

youdao

画出了涡流室纵截面、横截面和侧截面上的速度矢量图。

The velocity profile in vertical section, cross section and side section is given.

youdao

好了，我该…你们该怎么理解他们？坐标图是一种方法；矢量图是另一种非常重要的方法。

Ok, so how do I... how do you understand them? The row picture is one way; the column picture is another very important way.

youdao

好了，我该…你们该怎么理解他们？坐标图是一种方法；矢量图是另一种非常重要的方法。

Ok, so how do I... how do you understand them? The row picture is one way; the column picture is another very important way.

youdao