| 词汇 | concentric |
| 释义 | concentric adjective uk /kənˈsen.trɪk/ us /kənˈsen.trɪk/ Concentric circles and rings have the same centre: （指圆）同心的，同轴的 a concentric pattern同心圆图形 Geometry: properties of circles & curves amplitude arched bore circularity circumferential concave concavity concentrically conic curvy domed eccentric girth globular incisura lenticular lentiform osculate parabolic spiral concentric | American Dictionaryconcentric adjective us/kənˈsen·trɪk/ (of circles and rings) being one inside another and having the same center Examples of concentricconcentric A purely elastic instability apparently also occurs by a similar mechanism in other rotational shearing flows, namely concentric plate-and-plate flow and concentric cone-and-plate flow. The internal and external elastic laminae are thick concentric elastic-fibre layers that separate the intima and media, and the media and adventitia, respectively. Concentric-whorled membranes, having a granular appearance resembling the ribosomes of rough endoplasmic reticulum, float in the pseudocoelom between somatic muscles, reproductive tract and intestine. The concentric spherical shells, the so called "onions," constitute a form of carbon consisting of spherical concentric layers of carbon shells. Euhedral concentric zoning is common in most crystals. Again the isobars are concentric cylinders about the origin 0 and correspond with a pressure maximum. The inner crater in the crystalline basement is often the only part of the concentric structure that is preserved or recognizable. The excretory pore is located at the posterior extremity of the worm with the tegument forming tight concentric bands around the pore. The orientation boundary is made up of two offset concentric circles. In any case, all schemata representing concentric circles are misleading (as in discussions of identity). In the convoy, important relationships are identified and situated in three concentric circles around the self, arranged according to importance and closeness. They were asked to arrange their attributes in one of three concentric circles (center, intermediate, and outer) corresponding to importance of each attribute. One checks easily that this is the only other possibility for a cycle of circles of period 3 that is concentric about the origin. At the centre of the chamber base, a typical, rather small basal scar can be observed on all specimens, consisting of two concentric circles. There are indications that it is similar to the mechanism shown to cause orientation bias in cat concentric cells. 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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