单词：tangents
音标：[ˈtændʒənts] ；
n. <数>正切( tangent的复数形式 ); 突然转移话题; 突兀的转向; （铁路或道路的）直线区间
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