环面

根据预测结果，挖掘机下车架主件顶环面的平面度为0.68mm，很难达到要求的0.5mm。

The predicted plane degree of the upper ring surface of grag nether frame carbody is 0.68 mm . It seems not easy to meet the demand of 0.5 mm .

这种柔性齿蜗轮可用于环面蜗杆传动和圆柱蜗杆传动。

The flexibility-tooth worm gear can be used in ring surface worm transmission and cylindrical worm transmission .

基于CAD技术的环面蜗杆传动的啮合分析

Meshing Analysis on Worm Gearings Based on CAD Technique

基于MATLAB直线齿环面蜗杆的接触线分析与数字化曲面绘制

MATLAB-based analysis of contacting lines and numerical surface drawing of Hindley Worm

X射线环面聚焦镜压弯调整与面形测量

Adjustment and measurement of the tent toroidal mirror

TI环面蜗杆砂轮磨齿原理

The Principle of Gear Grinding with TI Hourglass Worm Grinding Wheel

基于MATLAB的直廓环面蜗杆的可视化

Based on MATLAB Straight Double Enveloping Worm Visualization

受驱动logistic映射倍环面分岔机制及标度关系

The torus bifurcation mechanism and the scaling law of forced logistic map

渐开面包络环面蜗杆付（TI型）的初步研究

An initial study of the involute face type of double enveloping worm gear pair

受驱动Logistic映射系统参数对环面破坏机制的研究

Research of the Effect of the System Parameter on the Torus Destruction Mechanism for Forced Logistic Map

环面圆丛上Coulomb相对规范的存在性

The Existence of Relative Coulomb Gauges on Circle Bundle Over Torus

基于VBA的平面二次包络环面蜗轮副实体造型

Solid Modeling of the Worm with Planar Double-Enveloping Based on VBA

在同样的假设下，Hill仍用摄动法分析了环面厚薄膜的膨胀变形。

Under the same assumption , Hill still used perturbation method to analyze the expand deformation of thick annular membrane .

TI蜗杆由渐开线斜齿轮包络形成，与斜齿轮组成一种环面蜗杆传动。

TI worm drive is a novel kind of hourglass worm , which consists of involute helical gear and enveloping hourglass worm .

介绍了采用VBA开发机械零件三维实体造型的实现机制和关键技术，通过平面二次包络环面蜗轮副实体造型程序实例，阐述了在VBA应用程序中三维实体造型的设计方法。

It proposed the key technology for modeling of Planar Double-Enveloping Worm with VBA in AutoCAD .

环面上U（1）丛的Chern－Simons不变量

Chern-Simons Invariants of U ( 1 ) - bundle over a Torus

TI（渐开面包络环面）内螺纹蜗杆砂轮磨齿是一项生产率与加工质量结合完美的新工艺。

Grinding gear with involute enveloping hourglass interior screw thread worm grind wheel is a new kind of craft which combines the high productivity with the good quality .

采用光线追踪和光路函数的方法，优化设计了具有超环面镜的前置光学系统的掠入射软x射线平场谱仪，得到了谱仪的谱分辨和空间分辨本领。

Using ray tracing code and optical path function , optimization calculation is carried out on a grazing incidence soft x ray flat field spectrometer with toroidal mirror as prepositive optic system .

研究一类环面上的vanderpol方程在周期扰动下的动力学行为。

In this paper , we study the dynamical behaviour exhibited by the toral Van der pol equation subject to periodic perturbation .

CBN渐开面包络环面蜗杆砂轮磨（珩）齿的啮合理论及参数选择

Mesh Theory and Choice of Parameter for Grinding ( Honing ) a Gear With CBN Involute Enveloping Toroidal Worm Grind Wheel

双曲环面自同构（LA）动力性态扭结拓扑分布定理

Knot Topology Distribution Theorem of Hyperbolic Torus Automorphism Dynamic Character

全环面牵引传动IVT的运动学和动力学分析

Kinematics and dynamics analysis of full-toroidal traction drive IVT

上述研究也为牵引式全环面IVT控制参数的确定提供了依据。

The above studies also provide theoretical base for determination of IVT control parameters .

具有嵌入环面4－个流形的Donaldson不变量

Donaldson invariants of 4-manifolds with Embedded Tori

NH3的C3轴与p－C6H4F2的对称轴夹角是52.5°；且一个氢原子朝向环面；

The C_3 axis of NH_3 is at an angle of 52.5 ° with the Z-axis of p-C_6H_4F_2 , with one of the hydrogen atoms pointing towards the benzene ring ;

实际上，Moser在[14]中已经注意到椭圆低维环面的保持性。

In fact , Moser [ 14 ] had already noted the persistence of elliptic lower dimensional tori .

利用Jordan曲线定理和经典的组合计数方法，得到了轮图在环面上柔性的计算公式，结合轮图的结果以及环面的性质，得到了轮型图（Halin图）在环面上柔性的计算公式。

By using Jordan Curve Theorem and classical combination , we obtain the formulas for computing the flexibility of wheels and wheel-like graphs on the torus .

根据Bertrand曲面的形成原理，利用Pro/E建立了该滚动式点啮合环面蜗杆传动副的三维实体模型。

According to the theory of Bertrand surface , identified the three-dimension geometry of globoidal worm gearing with roller teeth and point engagement by using of Pro / E.

本文利用计算机仿真、Lyapunov指数计算、计算机辅助验证等手段对这些系统的动力学行为进行了研究，发现了丰富的动力学行为，比如：混沌、超混沌、极限环、二维环面等。

This paper studies these systems by computer simulation , Lyapunov exponent calculation , computer-assisted verification and so on . Rich dynamical behaviors are found , such as chaos , hyperchaos , limit cycle , two-torus and so on .

丢番图逼近、环面T~2上的Gevrey亚椭圆性与几乎周期运动

Diophantine Approximation , Gevrey Hypoellipticity and Almost Periodic Motion on the Torus T ~ 2