n.切线，正切
adj.切线的，正切的，接触的，离题的

原形：tangent复数：tangents

The tangent line touches the curve at exactly one point.
切线在曲线上恰好接触于一点。
In trigonometry, the tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
在三角学中，一个角的正切是对边长度与邻边长度的比值。
The graph of the tangent function shows periodic spikes.
正切函数的图像显示出周期性的尖峰。
She accidentally brushed against the tangent of the controversy without realizing its sensitivity.
她无意中触及了争议的边缘，没有意识到其敏感性。
To find the equation of the tangent line, we need to calculate the derivative of the function at that point.
要找到切线的方程，我们需要计算该点处函数的导数。
The tangent of 45 degrees is equal to 1.
45度的正切值等于1。
His speech was a tangent, unrelated to the main topic of the conference.
他的演讲是一个离题，与会议的主要议题无关。
In calculus, understanding the concept of the tangent is crucial for finding derivatives.
在微积分中，理解切线的概念对于求导数至关重要。
The architect designed the building with clean lines and tangent angles, creating a modern aesthetic.
建筑师设计的建筑线条简洁，角度相切，营造出一种现代美感。
During the math lesson, the teacher demonstrated how to draw a tangent to a circle using a compass.
在数学课上，老师演示了如何使用圆规绘制圆的切线。