齿形

Circular arc gear as a result of its tooth profile characteristic, thus has the very high contact strength and flexural strength.

圆弧齿轮由于其齿形特点，因而具有很高的接触强度和弯曲强度。

This paper also describes the conditions for ensuring two engagement lines with double concave-convex circular arc profile.

讨论了中心距偏差和切深偏差相互补偿问题。文中还讨论了双圆弧齿形保持双啮合线的条件。

A short-amplitude cycloid is used to be the primary gear form for stator and the conjuration gear form using on rotor on the basis of the analysis and compare of all kinds of cycloids.

在对各种摆线分析比较的基础上，提出采用短幅内摆线作为原始齿形曲线用于定子骨线设计，其共轭曲线用于转子的双头单螺杆泵设计。

Based on a series of shear creep tests of discontinuous plane with regular dentation,the relationship between shear creep and different normal stress,shear stress,and slope ratio is obtained.

文章在规则齿形结构面剪切蠕变试验的基础上，分析了剪切蠕变随不同的爬坡角、正应力和剪应力的影响，拟合了剪切蠕变曲线，并将拟合的方程与Burgers模型的本构方程进行了比较分析，讨论了Burgers模型中剪切模量、粘滞系数的变化规律及其影响因素，取得了较为理想的结论，为结构面剪切蠕变本构方程的建立提出了较为合理简便的方法。

This paper studies the main geometrical parameter such as angle, height, width, stagger and the upper width in dentation and trapezoid flow path, firstly, uses the single-phase numerical simulation of the computational fluid dynamics technique to analyse the influence of different geometrical parameter on discharge coefficient and flow state exponent of drip emitter. Secondly, uses the two-phases numerical simulation of CFD (1% sand content ) to analyse the influence of the above mentioned geometrical parameter on the contribution regulation of sand and anti-clogging performance. Thirdly, uses the PIV （ particle Tracking Velocimetry ） technique which can see the small-scale flow path to observe and test the trajectories and velocities of solid particles in labyrinth flow path, and analyses the basic factors which can influence the movement characteristic of solid particles and the flow state in flow path.

本文以齿形流道、梯形流道为主要研究对象，以流道转角、流道高，流道宽、偏差量及梯形流道上底宽为主要结构参数，首先应用 CFD 单相流数值模拟技术对不同结构参数灌水器流道水力性能进行模拟，分析了不同结构参数对流态指数和流量系数的影响，其次，应用 CFD 两相流（含沙量为1%）数值模拟技术分析了结构参数对含沙量分布规律和抗堵塞性能的影响，然后，应用 PIV 可视化测试方法测试了固体颗粒在流道内运行轨迹及速度，分析了影响固体颗粒运动特性及流道内流体流态的基本因素，最后，对上述流道结构形式通过模具加工及滴灌带试制，进行了标准化测试（ GB/T 17187-1997 农业灌溉设备滴头技术规范和试验方法与 ISO 标准 ISO /TC23 /SC18 /WG5N4短周期堵塞测试程序），测试结果验证了 CFD 模拟结果，并提出了迷宫结构流道灌水器的抗堵塞设计方法。

In order to implement a reduction of RCS without any other change on the aircraft, the outline of the pylon is changed by applying a serrated scheme and the right dihedral angle structure is removed, so coupling effect is waken.

为求在不改变机体结构的前提下减缩飞机侧向RCS，采用齿形方案改变了挂架外形，消除了直角二面角结构，削弱了耦合效应。

Based on conjugate theory, the motion analyses of chains with double-tooth and single-tooth link plates are conducted.

设计构想以滚子链为结构基础，加上静音链的齿形概念。

The deformation curve of cutter tooth and gear tooth are obtained by analying deformation in shaving domain.

这样的剃后齿形不仅影响齿轮的传动精度，而且影响其噪音特

In produce actually, the detection of the tooth form error usually is last for the detection of the gear involute.

在生产实际中，齿形误差的检测通常为齿轮渐开线的检测上。

Following are the steps that would be used in a computer routine to calculate the involute profile.

用于计算机渐开线齿形的计算机程序如下所示。1、后置的单词作定语在汉译时可变为前置。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。