单词：tangent
音标：['tændʒәnt] ；
a. 接触的, 正切的, 离题的
n. 切线, 正切
n. 切线, 正切
n. a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
n. ratio of the opposite to the adjacent side of a right-angled triangle
n. ratio of the opposite to the adjacent side of a right-angled triangle
词型变化：名词复数形式 : tangents
词性分布：
tangent的用法和样例：
例句
用作形容词(adj.)
- Some examples are given by inscribed and circumscribed circles ofpolygons, lines intersecting and tangent toconic sections, thePappusandMenelausconfigurations of points and lines.一些例子所给予者和限制各界的多边形，线相交和相切的圆锥部分，帕普斯和墨涅拉俄斯配置的点和线。
用作名词(n.)
- The graph of a concave function is always below its tangent.一个凹函数的图象总在它的切线的下方。
- Both of approaching and returning movements are along the tangent of the circle.绕转之后移动方向为自南向北，也是沿圆周的切线运动。
- The tangent may be used to find the direction.这方向也可用正切求得。
- Store normals in generic space, e.g., Tangent Space.存储非普通空间的法向量，例如，正切空间。
词汇搭配
- arc tangent反正切
- fly off on a tangent突然离题
- go off at a tangent跑题,突然做起其他事...
- fly off at a tangent沿切线方向飞出(越出...
- tangent vector切矢量
- tangent scale[电]正切刻度[标度...
- tangent modulus正切弹性模数,切线模...
- tangent wedge切向楔
- common tangent公切线
- tangent elevation正切仰角
- tangent point切点
- tangent line切线
- tangent galvanometer正切电流计
- tangent key切向键
- tangent distance切距,切线长度...
- tangent screw切线螺旋
- tangent welding多极平行弧焊...
- tangent angle正切角
- tangent plane切面相切平面...
- tangent bender切线折弯机
经典引文
The earth,..without flying off in a tangent line, constantly rolls about the sun.
出自：G. BerkeleyThe radiation is emitted tangent to these trajectories.
出自：Scientific American
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