protractor
英 [pr?'tr?kt?]
美[pr?'tr?kt?]
詞態(tài)變化
復(fù)數(shù):?protractors;
中文詞源
protractor 量角器，分度規(guī)來自protract,拖延，延長。
英文詞源
- protractor (n.)
- 1610s, "one who lengthens (an action)," from Medieval Latin protractor, agent noun from Latin protrahere "to draw forward" (see protraction); sense of "instrument for drawing angles" first recorded 1650s.
雙語例句
- 1. Use your protractor to construct an equilateral triangle.
- 用量角器作一個等邊三角形.
來自《簡明英漢詞典》
- 2. This compass serves as a protractor.
- 這個羅盤可用作分度規(guī).
來自辭典例句
- 3. To draw to scale by means of a scale and protractor; plot.
- 測繪用圓規(guī)和量角器劃線和角; 標繪.
來自互聯(lián)網(wǎng)
- 4. Screen angle indicator: A protractor with many co - centre circles.
- 網(wǎng)角指示器: 是一個帶有很多同心圓的量角器.
來自互聯(lián)網(wǎng)
- 5. I can't find my protractor.
- 我找不到我的半圓儀了.
來自互聯(lián)網(wǎng)