查询词典 polyhedron

Based on the differential geometry theories , two kinds of the regular polyhedron are selectedas the new shapes of grinding media .

以微分几何理论为基础，选择了两种正多面体作为研磨体的形状，与球形研磨体进行了研磨效果的比较。

Five regular polyhedron solution s are given by analysing commonness of other special solutions of N-body problem.

分析N体问题一些特解的共性，给出5个正多面体解。

Rotation sensor is an important branch of sensors and it is very crucial for systems to apperceive, acquire and detect information. In this paper, a photoelectric regular polyhedron rotation sensor was designed for the fine measurement of the rotator's speed.

本文所研究的光电式正多面体转速传感器，是针对于回转物体的转速进行高精度测量的一种装置，它可以将回转物体的角速度信息转换成电脉冲信号，并进行测量显示。

This article summarizes the advantages of direct optimized law in working out inequality constraints, and proposes the way to carry on the simulation with the regular polyhedron law to the standard unitary flood noose curve.

简述了直接优化法求解不等式约束问题的优越性，提出了用正多面体法对标准单式洪水绳套曲线进行模拟的思路及程序求解方法，分析了正多面体法模拟标准单式洪水绳套曲线的可行性，为进一步利用水位推求流量创造了条件。

Using the divisible theory of the integer,the underside conclusion is proved:for all the vertex-coloring formulas of the regular polyhedron ,let be any integer,the result of these formulas is still the integer.

利用整数的整除理论，证明了以下结论：在所有正多面体顶点着色公式中，当颜色数取任何一个整数时，这些公式的计算结果仍然是整数。

The designed photoelectric sensors of regular polyhedron rotation realized to adjust the

本研究对该传感器的性能进行了测试，结果表明光电式正多面体转速传感器误差小于3%，测量精度的一致性比较好，基本上达到了设计要求。

The mouldrotation method useful to controll of the channel segregation is very available and feasible for heavy steel ingots of cylindrical or regular polyhedron shapes.

对于园柱和多角对称型大钢锭，用锭模旋转法控制沟槽偏析将十分有效和可行。

Methods Two mathematical models were created for preoperative planning of the ablation in spherical tumors. The models were based on the overlapping sphere principle and were deduced and calculated by the regular prism way and regular polyhedron way.

将肿瘤模式化为类球体，根据球体覆盖原理建立数学模型，应用正棱柱法及正多面体法进行推导计算，获得治疗范围与射频针伞径、布针次数的关系式。

It's found that the (001) facet is the growth facet when the NBW crystal is grown by the Bridgman method through spontaneously crystallization. This phenomenon is in accordance with the growth characteristic of the typical scheelite crystals, and can be well explained by the Bravais law and the theory of anion coordination polyhedron.

指出坩埚下降法自发成核NBW晶体生长的生长面为（001）面，这与白钨矿结构晶体（001）面生长快的特点是完全符合的，Bravais法则和负离子配位多面体生长基元理论都能够很好地解释这一现象。

Existing methods can't be used for recognizing simple polyhedron.

已有的识别方法对于简单平面立体的识别均不能凑效。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。