接触问题

Compared with the initial value problems of scalar conservation laws with smooth flux function, the global weak entropy solutions for the initial-boundary value problems of scalar conservation laws with weak discontinuous flux function include the following new interaction types: a rarefaction wave collides with the boundary and is absorbed compltetely or partially by the boundary; a rarefaction wave collides with the boundary and the boundary will reflect a contact or non-contact shock wave; a contact or non-contact shock wave collides with the boundary and is absorbed by the boundary; a contact or non-contact shock wave collides with the boundary and a new non-contact shock will rebound from the boundary simultaneously or later.

与具有光滑流函数的单个守恒律的初始值问题相比，具有弱间断流函数的单个守恒律初边值问题的整体弱熵解中包括下列新的相互作用类型：稀疏波碰到边界并被边界部分或全部吸收；稀疏波与边界相撞，边界反射出一个接触或非接触激波；接触或非接触激波碰到边界并被边界吸收；接触或非接触激波与边界相撞，边界同时或稍后反射出一个新的非接触激波。

In allusion to the lower measuring efficiency and inconvenience during the measurement of dynamic contact resistance of slip-ring, addressed improving methods for preventing the leads from intertwisting each other, and developed a measuring system for solving dynamic contact resistance measurement of slip-ring.

针对目前导电环动态接触电阻测量中由于导线缠绕导致检测效率低下、操作不便、不便较长时间观察导电环性能稳定性等问题，提出解决绕线问题的测量方法，并在此基础上研制一套导电环动态接触电阻测量系统，以解决动态接触电阻测量的技术难题。

Even partial tenting using a liquid photoimageable solder mask will cause contact problems, as the mask liquid will tend to run away through the via hole.

即使是用液态感光防焊剂局部覆盖也会导致接触问题，因为液态覆盖物会通过过孔流动。

The finite element models for contact problems of connectors of buttress and round thread s of casing are established with the elasto-plastic FEM.

用弹塑性有限元法建立了套管偏梯形和圆形螺纹接头接触问题的有限元力学模型。

There are several reasons why ex parte contact issues arise more frequently in agency proceedings than in court trials.

与法庭审判相比，单方面接触问题更频繁地出现在行政机关诉讼中，其原因有以下几种。

Also, many designing and cutting parameters such as the thickness of silver film, cutter diameter and the hardness of base-surface, which are influence on the friction force, are researched in detail by means of the model mentioned above.

这一数学模型对于深入研究硬基体涂敷软金属表面之间的椭圆接触问题以及齿面镀银弧齿锥齿轮摩擦系数计算和胶合承载能力分析具有重要的理论意义和应用价值。

In the present study, through using non-linear three dimensional finite element analysis, considering the contact in flange to nut and flange to gasket, we accurately computed the stress distribution in the flange joint in the normal work condition.

采用ANSYB软件，应用三维有限元技术，考虑了垫片的非线性和法兰和螺母、垫片的接触问题，并且采用了螺栓预紧单元，准确计算出法兰连接在承受内压、轴向力和弯矩外荷载时的应力分布。

Finite element dynamic mode is established for API casing leaning thread contact by using elasticand plastic infinite element.

用弹塑性有限元法，建立了API套管偏梯形螺纹接头接触问题的有限元力学模型。

And combining with shape modification computation on the pin tooth of cycloidal reducer, the correct method for solving this mathematical model was emphatically discussed by means of computer programming.

以非赫兹弹性接触问题对齿轮传动轮齿啮合进行研究，建立起了新的摆线针轮单齿啮合的柔度矩阵数学模型，并结合摆线减速器针齿修形计算，重点讨论了通过计算机编程，正确求解这一数学模型的方法。

Tire static enveloping properties model is established using tire and tread deformation equations and tire modal parameters.

为适应描述轮胎与任意不平路面的接触问题，模型中引入了胎体单元的转角位移。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷