查询词典 paper joint

In this paper,minimal energy principle and finite element method were employed to develop solder joint shapes evolving model of PBGA.

对焊点形态和力学行为进行研究可以揭示它们之间的相互关系，达到预测和控制焊点形态并对其进行优化设计的目的。

The paper derives detailly the viscoplastic strain velocities of joint, intact rock, as well as multilaminate rock mass corresponding to different stress states, and presents a viscous elastoplastic F·E·M·with consideration of the stepwise excavation sequence and different supporting time of lining in underground works with large cross-section.

分别推导了在不同应力状态下节理面、完整岩石和多组节理岩体粘塑性应变速率的计算公式。提出了节理岩体大断面洞室考虑分步开挖和不同支护时间的粘弹塑性有限元数值方法。

In order to relieve of its harmful effect, a neotype connection device— spherical joint is designed in the paper.

为了消除弯矩的不良影响，本文提出并设计了一种新的联接装置——球铰接头，其设计特点是扬矿管接头没有焊接部件，联接强度高，拆装快捷，可多次重复使用。

Nicholls is currently VP and executive project leader on special assignment related to the company's potential joint venture with Russian pulp and paper company, Ilim Pulp.

尼科尔斯目前正在执行副总裁和项目负责人的特别转让与公司的合资企业的潜力与俄罗斯纸浆和纸张公司，伊利姆纸浆。

In this paper, anovel mechanism based on orthogonal decomposition is proposed for joint timing recovering and multi-path components detection.

该文给出了采用基于正交分解进行脉冲同步的方法，相对于传统的使用匹配滤波器进行的定时估计和接收，具有结构简单，实现方便，在室内密集多径信道下和极大的符号间干扰下均能稳定工作的特点。

The welding of end ring of alternating current machine and the conducting bar is the key technology for manufacturing of asynchronous traction motor with high power. China South Locomotive and Rolling Stock Industry Corporation had taken this significative study as a key project for the manufacturing of alternating current machine. According to the welding of end ring of alternating current machine, the welding of copper and copper alloy is described in this paper. Results obtained in this study are as follows. 1.By the comparison of oxyacetylene gas brazing, induction brazing and resistance brazing, it was found that high-quality welding joint could be obtained by induction brazing, which also had the highest efficiency.

交流电机端环与导条的焊接是大功率异步牵引电动机制造的一项关键技术，开展其焊接工艺研究具有重要的意义，中国南车电机公司将此课题作为解决交流电机制造的一个重点项目，本文结合交流电机转子端环焊接的课题，对铜及其合金的焊接进行了研究，主要研究结论如下： 1、通过氧乙炔火焰钎焊、感应钎焊、电阻钎焊等焊接方法的对比试验发现感应钎焊可获得优质的焊接接头，且感应钎焊的焊接效率也是最高的。

Specifying a press fabric for a particular position of the paper machine is usually a joint effort by the supplier and the papermaker.

具体的压榨织物的对于纸机有着特殊地位，通常是供应商和客户共同的努力，通常情况下，这种规格的织物源自一个程序的机器试验和设计上的修改。

This paper presents a joint irregular low-density parity check code-encoder-decoder design approach.

提出一种非规则低密度奇偶校验码的联合构码、编解码方案。

A paper in the economic journal argues that non-physical assets in Sino-foreign joint ventures should include the exclusive technology, paten right, copyright, trade mark right and other special rights

刊登在这份经济杂志上的一篇研究报告提出这样的观点，合资企业中的无形资本应包括内部技术、专利权、版权、商标权及其他一些特别权利

A paper in the economic journal argue s that non-physical assets in Sino-foreign joint ventures should include the exclusive technology, paten right, copyright, trade mark right and other special rights

刊登在这份经济杂志上的一篇研究报告提出这样的观点，合资企业中的无形资本应包括内部技术、专利权、版权、商标权及其他一些特别权利

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。