1.
cubical cleavage
三向互相垂直的劈理
2.
His plan is to drop perpendiculars from each point of the curve upon two planes intersecting at right angles.
他的计划是：从曲线的每个点处作线段垂直于两个互相垂直的平面。
3.
The electric and magnetic fields oscillate perpendicular to each other and perpendicular to the direction the light is traveling.
它的电场与磁场以互相垂直的方向振荡，并垂直于光的行进方向。
4.
A corner cube consists of three mutually perpendicular reflecting planes.
角棱镜是由3个互相垂直的反射平面组成。
5.
Construct the part of the tangent of the deltoid intercepted by the curve.
三角星形线的两条互相垂直的切线的交点在哪里?
6.
Construct two mutually orthogonal tangents of the deltoid. Where do they meet?
三角星形线的两条互相垂直的法线的交点在哪里?
7.
Having or constituting a support with two perpendicular axes, one of which is parallel to the earth's rotational axis.
赤道平面上的由两条互相垂直的轴支撑的，其中一条与地轴平行
8.
The molecule of the Figure has two mutually perpendicular rings with one atom in common.
图中的分子有共用着一个原子的两个互相垂直的环。
9.
the two points A and B are vertical to each other
A点和B点互相垂直
10.
The two lines are perpendicular to one another.
这两条线相互垂直。
11.
Calibration Based on Two Pair Perpendicular Parallel Lines
基于两对互相垂直平行线的自定标方法
12.
Decussate Describing leaves in opposite pairs and with alternating pairs at right angles to each other up the stem.
交互对生的：两个相邻节上的对生叶交叉成垂直方向，称为交互对生。
13.
Designating a geometric coordinate system with mutually perpendicular axes.
直角坐标的表明是具有相互垂直的轴的几何坐标体系的
14.
Exact perpendicularity between the components must be maintained.
各分量之间必须严格地保持互相垂直。
15.
any of the four areas into which a plane is divided by two orthogonal coordinate axes.
被两个相互垂直的坐标轴分开的平面中的四个区域的任一个。
16.
Most applications involve simultaneous stabilization on three orthogonal axes.
大多数应用要求在三个相互垂直的轴上同时进得稳定。
17.
either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration.
相交在一台光学仪器焦距平面的两条相互垂直的直线中的任何一条，用来瞄准或者校准。
18.
Something vertical, as a line, plane, or circle.
垂直物垂直的东西，比如垂直线，垂直面或垂直圆