tangent
n. 切线,切面;正切
adj. 切线的,相切的;接触的;离题的
n. (Tangent)(美、印度)坦根特(人名)
复数 tangents
例句
The conversation went off on a tangent.
谈话突然偏离了正题。
《柯林斯英汉双解大词典》
In this paper base tangent length is put forward and lead angle calculating formula is deduced.
这篇文章提出了公法线长度并推导出超前角的计算公式。
It is really the tangent plane.
它确实就是切平面。