Three perpendicular line theorems 三垂线定理
perpendicular line segment 垂线段
test for perpendicular line [数] 垂直线验证法
We made two slits for the eyes and a perpendicular line for the nose.
我们划了两道缝儿做眼睛,一条竖线做鼻子。
In Right Viewport, anywhere, create one little perpendicular line from top to down long 0.15cm.
在右视窗，任何地方，从上创建一个小垂直线，以降低长期0.15厘米。
On the inside lane, less than a yard outside your window, stands a wall of treeless rock that climbs upward in a nearly perpendicular line.
在内车道，距离你的车窗不到一码的距离，就是没有杂草的是山岩，向上磊成几近垂直路沿。
应用推荐