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- Draw a line joining (up) all the crosses. 画条线将所有的十字连接起来。
- Draw a straight line joining these two points. 画一直线，将这两点连接起来。
- Any line joining two points on a plane lies wholly on that plane. 将平面上两点连接在一起的任意直线都完全位于该平面上。
- To create the first dimension, all we need is a line joining any two points. 我们只需要用一条线把两个点连接起来，就创造了第一个维度。
- NB: a diagonal is a straight line joining two vertices not on the same side. 注：对角线是连接两个不在同一边上的顶点的直线。
- A right triangle is formed by lines joining points SPQ. SPQ三点联结后即构成一个直角三角形。
- A central force is defined as a force acting along the line joining a particle or object to a center of force. 辏力就是沿着质点（或物体）向力心连接线方向作用的力。
- The centers of the epicycles of Mercury and Venus must lie on the line joining the Earth and the Sun. 水星和金星的均轮中心,和地球及太阳中心永远连成一条直线。
- Outer Similar axis : The line joining three outer similar points X, Y, Z of three circles is called outer similar axis (or monge line). 外相似轴：给定三圆，则三对外相似点X,Y,Z在同一直线上(蒙日直线)。此性质又称为"蒙日定理"。
- The vertical line meets the horizontal one here. 垂直线与水平线在此相交。
- The Method for Two Wide Lines Join Smoothly 宽直线连接的处理方法
- One line cuts another at right angles. 一条线与另一条线成直角相交。
- The printers have missed out a whole line here. 排版工人在这里漏掉了一整行。
- Participation in tender is in our line of business. 参加投标属于我们的业务范围。
- A long line of car is unable to pass that road hog. 一长串的车子无法超越那个挡道的汽车驾驶。
- The sale office is on line to the warehouse. 营业部与仓库的计算机联网。
- How do you get start in that line of work? 你是怎么开始干那一行的？
- I do not want to be in the boss line of fire today. 今天我不想遭到老板的非难。
- Place your right toe in line with your left heel. 把右脚趾与左脚跟排在一直线上。
- The line of flags was slung up between two trees. 一排旗帜悬挂在两棵树之间。
