| 单词 | frustum |
| 释义 | frustum noun[C] uk/ˈfrʌs.təm/us/ˈfrʌs.təm/frustauk/ˈfrʌs.tə/us/ˈfrʌs.tə/frustumsmathematicsspecialized thepartof asolidshapesuch as aconethat is between thebaseof theshapeand aparallelplanethrough theshapeor between twoparallelplanesthrough theshape 平截头体，截头锥体Geometry: parts of geometrical shapes
Examplesoffrustumfrustum The ellipsoid volume was derived from length and diameter measurements at several points by approximating the cone ellipsoid as the sum of frustums. From theCambridge English Corpus Cone ellipsoid volume was approximated as a sum of frustums from length and diameter measurements at several points along the ellipsoid. From theCambridge English Corpus Some authors use "pyramid of vision" as a synonym for viewfrustumitself, i.e. consider it truncated. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.Viewfrustumculling is the process of removing objects that lie completely outside the viewingfrustumfrom the rendering process. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.In ray tracing, bounding volumes are used in ray-intersection tests, and in many rendering algorithms, they are used for viewingfrustumtests. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Other bases may be used, such as an octagon, or afrustumwith star section shape more common to pandoro. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The main crossing towers are 158 m tall with one crossarm atop afrustumframework construction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The tower is formed as afrustumof a cone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.He gave the derivation of the volume of afrustumby a sort of infinite procedure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The perspective viewing volume is afrustum, that is, a truncated pyramid. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The angle of the wings on the anchor allow for increase offrustumpressure on the soil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It can be thought of as a spherical cap with the top truncated, and so it corresponds to a sphericalfrustum. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Each is a hollow mast resembling a truncated cone (orfrustum). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The planes that cut thefrustumperpendicular to the viewing direction are called the "near plane" and the "far plane". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Problems 10 and 14 compute a surface area and the volume of afrustumrespectively. 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. |
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