您要查找的是不是：
- A line segment that joins two points on a curve. 弦将两点用曲线连接起来的曲线段
- The length of any such line segment. 半距离这种线段的长度
- Either of two points marking the end of a line segment. 端点标记一条线段两端的两点中的任何一点
- In computer graphics, a directed line segment. 在计算机制图学中，一种有方向的线段。
- Appends a line segment to the current figure. 向当前图形追加一条线段。
- This sub just sets the first line segment up. 设置第一节闪电。
- Chord: a line segment that joins two points on a curve. 弦:将两点用曲线连接起来的曲线段。
- Chord:a line segment that joins two points on a curve. 弦:将两点用曲线连接起来的曲线段.
- A line segment that joins the center of a sphere with any point on its surface. 球半径将心与球面上任一点起来的线段
- T: Who can draw a line segment to explain this problem? Who wants to try? 谁能用线段图说明这题的意思?谁愿意试一试。
- He determined the length of the shortest line segment joining the two points. 他确定了连接那两点的最短线段的长度。
- Draws the connected line segments to the screen. 将已连接的线段绘制到屏幕。
- Into a sequence of connected line segments. 中的各段曲线转换成相连的线段序列。
- If the line segment resents a vector, its projections are called the components of the vector. 如果线段代表一个矢量，其投影就叫做矢量的分量。
- A line segment that joins the center of a regular polygon with any of its vertices. 将正多边形的中心与它的一任一顶点起的来的线段
- Draws a chord (a closed figure bounded by the intersection of an ellipse and a line segment). 绘制椭圆弧(椭圆和一条线段相交围成的闭合图形)
- Appends a series of connected line segments to the end of this. 末尾追加一系列相互连接的线段。
- Draws a set of line segments connecting the specified points. 画一组与指定点连接的线段。
- A closed plane figure bounded by three or more line segments. 多边形；多角形由三条或更多的线段围成的一个封闭的平面图形
- Draws a line segment and an arc, and moves the current position to the ending point of the arc. 画一条线段和圆弧,把当前位置移到圆弧终点。
