extension line

基本解释

The extension line type intersection is a special intersection for highways in mountainous areas.
展线型立交是山区道路中的特种立交。
An extension line with a certain distance to the steel bar discharge hole is provided with a contact travel switch. A wire is connected between the travel switch and a clutch electromagnet.
在距离钢筋出料口一定距离的延长线上设有一个接触式行程开关，行程开关与离合器电磁铁之间连接有导线。
ip.com
After the subroutine parameter is given the origin number, the plotter controlled by computer can draw out automatically extension line, dimension line, arrowhead and write dimension figures.
当给子程序的参数赋以初值后，由计算机控制自动绘图机绘制出尺寸界线、尺寸线、箭头和注写尺寸数字。

Of course, if you are working on a minor product line extension or something familiar, you may succeed.
FORBES: The Innovator’s Paradox
This year the 250km extension of the line to Marseilles will put up his access charges to euro1.7 billion.
ECONOMIST: World class in both speed and losses
Or when Mobil made a line extension into cardboard boxes and retailing?
FORBES: Side Lines