1.
Something, such as a line, a plane, or an object, that is horizontal.
水平物水平的物体(例如水平直线,水平面线或水平物)
2.
The Closed-traverse Method in the Plane Alignment Design of Interchange;
立交匝道平面线形设计的闭合导线法
3.
A horizontal line or plane at right angles to the plumb.
水平线与铅锤线成直角的水平线或水平面
4.
Study on the problem of possition relationships between plane and plane,straight line and straight line and straight line and plane in space;
空间中平面与平面、直线与直线及直线与平面间位置关系研究
5.
Singularities of Parallels for Hyperbolic Plane Curves
双曲平面曲线的平行曲线的奇点分类
6.
Along a flat or even line or plane.
水平地沿水平面或水平线地
7.
antenna height above average terrain
平均地表面上天线高度
8.
produces plane-polarized ultraviolet light.
产生紫外线光偏振平面。
9.
height calculation above sea level
水平面以上天线高度
10.
Gauss grid convergence
高斯平面子午线收敛角
11.
A point, line, or plane.
一点,一条线或一个平面.
12.
This is a plane curve.
这是一条平面曲线。
13.
Plane Archimedes spiral antenna
阿基米德平面螺旋天线
14.
a line enclosing a plane areas.
围绕一些平面区域的线。
15.
A line or plane perpendicular to a given line or plane.
正交线（面）一条或一个与给定直线或平面垂直的直线或平面
16.
The point at which a line, or the curve in which a surface, intersects a coordinate plane.
交点，交线线与坐标平面相交的点或一表面与坐标平面相交的曲线
17.
parallel to or in the plane of the horizon or a base line.
与地平线或者基准线平行，在地平面或者基准平面上。
18.
One of a set of parallel geometric figures, such as lines or planes.
平行线，平行面如直线或平面等一组平行的几何图形之一