| 单词 | semicircle |
| 释义 | semicircle noun[Cusually singular] uk/ˈsem.iˌsɜː.kəl/us/ˈsem.iˌsɝː.kəl/halfacircle: 半圆Wearrangedthechairsina semicircle.我们把椅子摆成半圆形。  /GettyImages Geometrical shapes
semicircle| American Dictionarysemicircle noun[C] us/ˈsem·iˌsɜr·kəl/geometry halfof acircle, or something in thisshape: Ourtentswere set in a semicircle. Examplesofsemicirclesemicircle Each circle-sphere containment is mapped into an incidence between a point and asemicircle. From theCambridge English Corpus One young man stepped from thesemicircleand motioned towards the one with the camera. From theCambridge English Corpus Here parent trees had most likely died and left spaces in the centres of the semicircles of what are now their offspring. From theCambridge English Corpus Another young man in the widersemicirclewore a baseball hat. From theCambridge English Corpus Clearly, these semicircles form a collection of pseudo-segments, that is, each pair of them intersects at most once. From theCambridge English Corpus He looked at thesemicircle, including the four people on chairs. From theCambridge English Corpus A radial line from the center of thesemicircleto a given target location indicates intact orienting at that target location. From theCambridge English Corpus We recorded birds which appeared within asemicirclewith a radius of 25 m from the fixed point. From theCambridge English Corpus Two concentric semicircles represent 50% and 100% response levels and the length of the bold line indicates the percentage of responses at each location tested. From theCambridge English Corpus She sat on a chair close to and facing the bed, at the focus of thesemicircle. From theCambridge English Corpus The "ashes" of the first and the black cloud of the second are marked by identical black spirals and semicircles and by star markings. From theCambridge English Corpus The class sat in asemicirclewith teachers and helpers playing acoustic instruments familiar to them from the class cupboard. From theCambridge English Corpus This is achieved by means of a metal sheet inserted between the two semicircles just in the vertical connecting parts. From theCambridge English Corpus Figure 3 shows an example of a polygonal object whose local freedom angles are shown using dark semicircles. From theCambridge English Corpus Clearly, a different result is obtained by integrating along a vertical line than along the semicircles shown. From theCambridge English Corpus 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. |
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