Well, for example,if our surface is a plane, a slanted plane given by some equation, ax by cz = d.

比如说，假如我们的曲面是一个平面，由公式ax+by+cz=d给出的，一个倾斜的平面。

youdao

This paper describes 3-D curved surface, such as wave-surface etc, on 2-D plane by using hidden-line method.

本文用带消隐线的方法在二维平面上来描绘三维曲面，例如波表面等。

youdao

The identifying and classifying method of the features of dimension elements in a 2-d plane graph is suggested.

本文提出二维平面图形的尺寸单元特征识别分类的方法。

youdao

The Smithsonian's National Air and Space Museum in Washington,D.C.owns the plane.

VOA: special.2009.03.18

But in sigma orbitals, you have no nodal planes along the bond axis, so if we had a nodal plane here, we'd see an area where the wave function was equal to zero.

但在sigma轨道里，沿着轴向是没有节点平面的，如果我们有个节点，我们就会看到某个地方波函数等于0。

麻省理工公开课 - 化学原理课程节选

"There were some problems with some tactics, techniques and procedures, the way in which close air support was supposed to have been executed in this case, such that, at least with one of the aircraft involved, a B-1 bomber, that plane because of how it takes its bombing routes had to break away from positive I.D.

VOA: standard.2009.06.08

You could use both controllers to grab a 2-D plane like an image and stretch it out, or place it in different positions in the virtual 3-D space.

FORBES: Sony's PlayStation Move: Deep In The Heart Of Sony's R&D Lab

As Olson put it, when their plane neared D.

FORBES: Come On America, Show Some Pride and End the Recession

Still, when my editors and I discussed whether we'd rather invest in a robot or several plane tickets to New York, we'd choose the latter.

WSJ: My Life as a Telecommuting Robot