protractor

过去分词：

动词过去分词: protracted

更多词形：

形容词: protractive | 副词: protractedly | 名词: protractedness | 动词过去式: protracted | 动词过去分词: protracted | 动词现在分词: protracting | 动词第三人称单数: protracts |

单词例句：

The actual displacement between any two points may be determined by drawing a scale diagram with a ruler and a protractor, or by using simple trigonometry.

任何两点之间实际的位移可用比例尺和分度器画简图予以判断，或者使用简单的三角学计算之。

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

测绘用圆规和量角器划线和角；标绘

Step 1: Make a tube by rolling the A4 paper lengthways and taping the ends closed. Next, cut out the protractor at the bottom of this page.

步骤一：将A4纸纵向折捲成管状，再以胶带固定端点。接著，剪下本页最下方的半圆量角器图形。

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

测绘用圆规和量角器划线和角;标绘

Yes. Let's look at this transit. It contains a telescope, a compass, and a protractor, and it's used to measure horizontal and vertical angles.

好的让我们来看看这个中星仪，它包括一个望远镜。一个指南针，一个测角器，它用来测量水平和垂直的角。

Use your protractor to construct an equilateral triangle.

用量角器作一个等边三角形。

Screen angle indicator: A protractor with many co-centre circles. When placed over a half-tone film or print, indicates by a halo, the screen angle of the half-tone.

网角指示器:是一个带有很多同心圆的量角器。把它放在瘗半色调底片上，现出圆晕，指出该半色调的绸线角度。

First the idea of visual protractor is introduced, then a Kalman filtering method is used to fuse visual information with encoder information to correct the mobile robot tracks obtained with encoder.

首先，介绍了视觉量角计的思想，进而利用卡尔曼滤波的方法将视觉信息与码盘信息相融合，对依靠码盘得到的航迹进行了修正。

P.S I lost my calculator&protractor,so i can,t do my mathematics exercise12 ar!!

我吾见左个计数机和量角器,所以做吾到数学练习12呀!!