in line

source pump station

(管线上)起点泵站

in the path of; in the way of

在..行经的路线上

blind of a line

在一条管线上加上盲板

Where shall I write the number, on, above or below the line?

我把号码写在哪儿，压线，线上还是线下？

of or in or along or relating to a line; involving a single dimension.

线的、线上、沿着线或者与线相关；指涉及一个维度。

Bus width indicator. Place on top of a white bus shape and type in the number of lines on the bus.

总线宽度指示符。放置在白色总线形状上并在总线上键入线数。

The curve traced by a point on the circumference of a circle that rolls on a straight line.

圆滚线，摆线圆周上任一点在一条直线上滚动时所形成的曲线

Drag onto the page, then place on top of a white bus shape and type in the number of lines on the bus.

拖到绘图页上，然后放置在白色总线形状上并在总线上键入线数。

leased line

专线,[港]上网专线

She unwound the wool from the ball.

她松开线团上的毛线。

railroad overbridge

铁路跨线桥(铁路线在上)

She wound off the silk from the ball.

她从线团上解下丝线来。

Thread is wound on spools.

线是绕在线轴上的。

mark with lines, draw lines on.

用线作标记在……上画线。

The wiring is faulty and needs to be replaced.

线路上有短路需要换线.

wireless operators on ships

船上的无线电接线员

There are various types of lines on the drawing such as: border lines, visible lines, invisible lines, break lines, phantom lines.

图上有各种形式的线条，诸如：边框线、线、线、面线、心线、出线、寸线、裂线、想线。

She plucked at the loose threads of her coat.

她扯去上衣上松了的线。