画一个平行四边形需要使用直尺和量角器。

Drawing a parallelogram requires a ruler and a protractor.

是一个带有很多同心圆的量角器。

A protractor with many co-centre circles.

是一个带有很多同心圆的量角器.

A protractor with many co - centre circles.

圆规，量角器，尺子或任何。

Compass, protractor, ruler, or any kind of aid.

抱歉先生，这个量角器是怎么读的？

Excuse me, sir. What does this protractor read?

测绘用圆规和量角器划线和角; 标绘.

To draw to scale by means of a scale and protractor; plot.

量角器必须放在管道上如下图所示的位置处。

The protractor must be placed on the pipe in the position shown below.

网角指示器: 是一个带有很多同心圆的量角器.

Screen angle indicator: A protractor with many co - centre circles.