adj. 1.垂直的，直立的；【数学】成直角的，正交的。 2.矗立的；险陡的，险峻的。 3.〔P-〕【建筑】垂直式的。 4.〔戏谑语〕直站着的。 短语和例子 a perpendicular cliff 绝壁。 a perpendicular line 垂(直)线。 a perpendicular plate 水平板。 n. 1.垂(直)线；垂直面。 2.垂直测器，锤规。 3.直立，直立姿势；廉直。 4.〔P-〕【建筑】垂直式建筑。 5.绝壁。 6.〔俚语〕站着的进餐。 短语和例子 be out of (the) perpendicular 倾斜。 the perpendicular 【数学】垂直，正交。 adv. -ly ,-ularity n.
at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height" 同义词：vertical,
intersecting at or forming right angles; "the axes are perpendicular to each other"
extremely steep; "the great perpendicular face of the cliff"
an extremely steep face
a cord from which a metal weight is suspended pointing directly to the earth''s center of gravity; used to determine the vertical from a given point 同义词：plumb line,
a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting 同义词：perpendicular style, English-Gothic, English-Gothic architecture,
a straight line at right angles to another line
例句与用法
1.
Two perpendicular lines are chosen as the x and y coordinate axes . 选两条垂线作为x和y坐标轴。
2.
Flight lines are roughly perpendicular to geologic strike . 飞行路线大致垂直于地质构造的走向。
3.
Draw a line perpendicular to the horizontal axis through the point . 通过这两直线的交点做横轴的垂线。
4.
The line of sight must be approximately perpendicular to the horizontal axis . 视线必须近似地垂直于水平轴。
5.
Those that are aligned perpendicular to the plane are called axial hydrogens . 与平面垂直定向的氢叫做直立氢。
6.
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。
7.
We will denote by h the perpendicular distance from p to the inclined face . 我们用h来表示从p点到斜面的垂直距离。
8.
When a surface is perpendicular to the rays , their intensity is at their maximum . 当表面与射线垂直时，射线的强度最大。
9.
He stood now, warped out of the perpendicular by the fierce light of publicity . 此刻他站着，被众目睽睽的眼光盯得不知所措。
10.
At each crossing of an equipotential and a field line, the two are perpendicular . 在等位面与电力线的每个交点，两者是垂直的。
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