相切

The point of tangency between the circle and the line is precisely where they touch without crossing.
圆与直线之间的切点正是它们相接触而不相交的那一点。
In geometry, a tangent line just touches the curve at a single point, called the point of tangency.
在几何学中，切线仅在单一点上触及曲线，这一点称为切点。
The condition for a line to be tangent to a curve is that their slopes must be equal at the point of tangency.
一条直线成为曲线切线的条件是，在切点处它们的斜率必须相等。
At the point of tangency, the curve and its tangent line share the same slope and direction.
在切点处，曲线及其切线具有相同的斜率和方向。
To find the equation of the tangent line, we need to calculate the derivative of the function at the point of tangency.
要找到切线的方程，我们需要计算函数在切点处的导数。
In the case of a parabola, the directrix and the axis of symmetry intersect at the point of tangency with the focus.
对于抛物线而言，准线和对称轴在与焦点相切的点处相交。
The radius of a circle is perpendicular to the tangent at the point of tangency.
圆的半径在切点处与切线垂直。
In differential calculus, identifying points of tangency helps in understanding the behavior of curves and their rates of change.
在微分学中，识别切点有助于理解曲线的行为及其变化率。
The point where the graph of a function intersects its asymptote is considered a point of tangency, albeit an infinite one.
函数图像与其渐近线相交的点被视为切点，尽管是无限的切点。
In art, the concept of tangency is often used to create visually harmonious compositions where elements just barely touch each other.
在艺术中，切点的概念常用于创造视觉上和谐的构图，其中元素仅轻微地相互触碰。