2) volume of truncated pyramid
棱台体积
1.
Analyzes some computational method about volume of truncated pyramid in Book of Measurements,explores the formulas construction and source of theoretical about them,points out the significance on study the Book of Measurements from a view of mathematical communication.
分析《度量之书》中棱台体积的几种计算方法,探讨了相关法则的公式构造与思想来源。
3) combination frustum shell
棱台组合壳体
1.
The new technology of the dieless hydroforming of spherical vessels from combination frustum shells is put forward in the present paper,and on the basis of many investigation experiments, a closed shell with a proper structure is determined,and its hydrobulging process is simulated by means of elastoplastic finite element method,at last success is obtained through experiments.
提出了棱台组合壳体整体无模胀形制造球形容器的新工艺,并经过多次实验探索选定了合理的壳体结构,应用弹塑性有限元法对该结构壳体的胀形过程进行了数值模拟,最后通过实验获得了成功。
5) volume formula for the frustum of a square pyramid
正四棱台体积公式
1.
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) imitative prismatic stand
拟棱台
1.
The typical imitative prismatic stand in geometry is widely used in mechanical parts.
几何学中典型的拟棱台广泛存在于机械零件中 ,本文讨论了各类拟棱台零件及其腔体的数控加工中进行数控编程时 ,如何利用计算机来处理刀具的走刀轨迹 ,从而可较容易地编制出数控加工程序。
补充资料：棱台
棱锥的底面和平行于底面的一个截面间的部分，叫做棱台。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条