| 单词 | protractor |
| 释义 | protractor noun[C] uk/prəˈtræk.tər/us/prəˈtræk.tɚ/adeviceused formeasuringanddrawingangles. It is usually in theformofhalfacirclemade fromtransparentplasticwithdegreesprintedon it. 量角器；分度规 imagenavi/GettyImages Geometrical & mathematical instruments
protractor| American Dictionaryprotractor noun[C] us/proʊˈtræk·tər/adeviceformeasuringanddrawingangles, usuallyshapedin ahalfcircleandmarkedwithdegrees Examplesofprotractorprotractor Using aprotractorwe were able to make an estimate of the angle of one of the air wedges: 37 (0.645 radians). From theCambridge English Corpus The angle of flexion of a whole finger with 3 joints was measured with aprotractor. From theCambridge English Corpus The angle between the 2 metal sides was measured with aprotractor, estimated accuracy 1x (3 measurements, averaged). From theCambridge English Corpus This instrument, which was constructed from a precisionprotractorand sensitive bubble level, was accurate t o within 0.05". From theCambridge English Corpus By contracting the transverse muscles (and the action ofprotractormuscles), the foot becomes narrow and elongated causing it to penetrate the substrate. From theCambridge English Corpus The angle of inclination relative to the horizontal of the petiole, lamina and drip tip of each leaf was measured using a transparent plasticprotractorand a plumb line. From theCambridge English Corpus The angle of pulmonary artery bifurcation was measured by a hand-heldprotractorfrom the recorded image by extrapolating straight lines along the medial walls of the branch arteries. From theCambridge English Corpus One ran, as it were, with theprotractoralongside, knowing that in many cases the long jump depended on height and not length. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 Rulers, protractors and compasses can be taken into the examination. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.Dice determined wind speed and direction, and hence the ship's speed and the use of its cannon by measuring angles with theprotractor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It combined a compass with aprotractorbuilt into the base. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.He quantified handwriting by use of a microscope, caliper, pressure board, ruler,protractorand slow-motion pictures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These data can be computed manually, using special protractors and slide rules with precomputed firing data. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.More commonly the set square bears the markings of a ruler and a half circleprotractor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Finally, the initial angle could be measured with a simpleprotractor. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
| 随便看 |
|
英汉词典包含213609条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。