1.
gear wheels that mesh in the same plane.
啮合在同一平面的齿轮。
2.
Lying or occurring in the same plane. Used of points, lines, or figures.
共面的位于或发生于同一平面的。用来形容点、直线或图形
3.
a door that is flush with the wall.
与墙在同一平面上的门
4.
Being on a horizontal plane.
在同一个水平面上的
5.
an angle formed by two straight lines (in the same plane).
两个线（同一个平面里的）形成的一个角。
6.
Mercury and Earth do not orbit the sun on the same line.
水星和地球的轨道不在同一个平面上。
7.
All the orbits lie nearly in the same plane.
所有物体的轨道几乎都在同一平面上。
8.
Flattened downward, as if pressed from above.
扁平的向下变平的，如同从上面压下一般
9.
The Same Property of the Gravity Center of Plain Graphs About Some Axes Symmetry;
一类平面图形关于某轴对称的重心同一性
10.
of a surface exactly even with an adjoining one, forming the same plane.
指完全与邻接平面平齐的表面，形成相同的平面。
11.
The street plan of the city has evolved as a series of concentric rings.
该城市的街道平面图像一圈圈的同心圆环。
12.
Uniform Topological Representation Model of Planar Mechanisms and Isomorphism Identification
平面机构统一拓扑描述模型的建立及同构判别
13.
a form of crystal with two similarly inclined faces that meet at an edge parallel to the horizontal axis.
"晶体的两面倾斜度基本相同,交线与水平轴平行的一种形式."
14.
Primitive money system needs the same balance of supply and demand that the modern system is facing.
如同现代体系所面临的一样，原始的货币体系需要同样的供养平衡。
15.
Parallel lines are, by definition, lines on the same plane that never join.
按照定义说, 平行线是在同一平面上永不相交的线。
16.
The area at which this level is reached is different but probably typical for each biome.
不同的面积具有不同水平，但对每一个生物群落而言，可能是典型的。
17.
A plane cubic curve having a single loop, a node, and two ends asymptotic to the same line.
平面立方曲线平面的立方曲线，具有一个拱形、一个交点和逐渐接近同一条线的两个端点
18.
Four-sided faces only work well if the Face is pretty much flat (all points lie within one imaginary plane) and convex (the angle at no corner is greater than or equal to 180 degrees).
四边面只有在面是非常平整并且是直角的时候工作才是最好的（也就是四点处同一平面上）。