英：['frʌstəm]
美：['frʌstəm]
frustum如何读
frustum是什么意思
- n.[数]平截头体
frustum自然拼读
frus·tum
fruh stm
frustum变形
复数:frusta或frustums
frustum英英释义
noun
the bottom part of a cone that remains after the top portion is cut off with a plane parallel to the base.
the part of a cone, pyramid, or other solid figure contained between two usu. parallel planes.
frustum词源中文解释
"剩余的一部分在被切掉后," 1650年代，在数学中，来自拉丁语 frustum "断裂的一块"，源自 PIE *bhrus-to-，源自词根 *bhreu- "切割，打碎"（参见 bruise (v.)）。
frustum_数学行业词汇
平截头台
frustum词源英文解释
New Latin, from Latin, piece, bit — more at bruise >entry 2
The first known use of frustum was in 1658
frustum 例句
1 Then follows, in most textbooks, a theorem relating to the volume of a frustum.
2 When they had reached the frustum's base, Urim descended and, in turn, presented various members of his retinue.
3 It should be noticed that the regular pyramid may be considered as a frustum with the upper base zero, and the proposition as a special case under the corollary.
4 They have the shape of a trapezoid or frustum.
5 In ancient Babylonian mathematics, the expression of volume formula for the frustum of a square pyramid is much more complicated than its modern form.
在古巴比伦数学中，正四棱台体积公式的表现形式和现代形式相比十分复杂。
6 Now, however, the almost universal form of jug in use is a frustum of a cone with a miniature spout.
7 If the upper base is equal to the lower base, the frustum becomes a cylinder, and still the proposition remains true.
8 Let r1 and r2 be the radii of the wide end and the narrow end of the frustum, respectively, and let l be the slant height of the frustum as shown in the following figure.
9 A scutoid is more complicated than a prismatoid, which is more complicated than a frusta, which is more complicated than a prism.
10 The term frusta is sometimes applied to them.
11 Biologists had long assumed that these cells acquire the shape of frusta, as in a Roman arch.
12 The second row of hoops is shrunk on forward of the trunnion hoops for a length of 38 inches to strengthen the gun, and the hoop portion forms three conical frustums.
13 I did not see any marks of the frusta of the columns having been joined by iron hooks, as at Palmyra.
14 Figure 6.44 Calculating the lateral surface area of a frustum of a cone.
15 The others amused themselves all around me; I found my delight in the frustum of a pyramid.
16 It is necessary to consider the reasonableness of split and the quality of shadow image when drawing shadow based on the view frustum split in a large scale scenes.
采用基于视截体分层的方法进行大规模场景阴影绘制时，需要考虑分层的合理性与阴影的图像质量。
17 Given the current frustum, compute the visible geometry.
给定当前视景体, 计算可见几何体.
18 It is possible for 3D shapes resembling frusta to form tubes.
19 The upper end of the adjusting screw (7) is provided with a frustum-shaped valve needle (6).
所述调节螺杆(7)的上端具锥台形阀针(6)。
20 The forming principle of frustum cone - like cup ( container ) is studied.
研究了圆台形纸杯 ( 容器 ) 的成型原理.