查询词典 thermal-insulating value

For wire bonding,we got methods to avoid low-k material layer crack and IMC crack by gold wire selection,capillary design optimization,and wire bonding process window study;Wire sweep issue was declined,after use reverse wire bonding technology to get low wire loop,define high wire loop and low wire loop between neighbour wires to reduce wire cross and split transfer course into several segments by different transfer speed to control mold flow;For molding and to different packages,as a physical method,add suitable presser during different cure process,it can reduce warpage value;As chemical methods,optimized component of molding compound or added flexiblier,it can decline thermal stress and warpage.

在引线键合方面，通过对不同纯度金线的选择、劈刀设计的优化、以及对引线压焊工艺窗口的研究，找到了可降低焊盘碎裂，金铝间化合物分层等问题的方法；通过使用反向压焊来控制线线弧高度和在邻近线间使用高(来源：A7aB4848C论文网www.abclunwen.com)低线弧来控制线弧以及模塑注塑速度细分化的方法，有效降低了冲线值；在模塑方面，针对不同封装形式，通过封装模块在烘烤过程中优化外加压力的时机，利用物理方法有效减低了翘曲；此外从化学角度出发，通过对模塑材料配方的优化以及添加应力释放剂，有效降低了封装内的热应力，减小了封装模块的翘曲。

A logical economic diagnosing model of the thermal power power plant,including optimization value dynamic seeking model and deviation analysis model based on deviation factor and the improved method for the determination of wet steam enthalpy in the last stages of steam turbine,is developed.

针对国内火电站的运行管理现状，深入研究建立合理的火电机组实时经济性诊断模型，包括了目标值动态寻优模型、单位偏差系数模型和湿蒸汽焓的改进算法。

The coherences between Te and the thermal lithospheric thickness, the base depth of magnetic tectonic layer are much better in the whole Transect, these demonstrate Te of continental lithosphere is closely concerned with"heat"geophysical parameters, also prove the heat structure of the lithosphere is the primary factor of influencing the value of Te.

整个断面上热岩石圈厚度、磁性构造层底面深度与Te值的相关性更好。

The result indicates that there are obvious differences between CO2 and CH4 gas reservoirs on value of thermal etching carbonate, fluorescence spectrum and CO2 gas conte...

结果表明，花沟地区的CO2气和CH4气具有不同的地球化学指标组合异常特征，在热蚀碳酸盐、荧光光谱及CO2气含量等指标上有明显的差异。

The result indicates that there are obvious differences between CO2 and CH4 gas reservoirs on value of thermal etching carbonate, fluorescence spectrum and CO2 gas content in Huagou area.

结果表明，花沟地区的CO2气和CH4气具有不同的地球化学指标组合异常特征，在热蚀碳酸盐、荧光光谱及CO2气含量等指标上有明显的差异。

The value of the loss, the equivalent of heat conductivity for stator coil and the thermal convection coefficient of convection faces are researched in this paper.

同时，在异步温度场的计算和分析中，绝缘层常常被忽略，但由于绝缘材料的导热系数很小，在一个很薄的股线绝缘层上将会有一个显著的温度变化。

According to the property of EBB, scanning electron beam was considered as plane heat source instead of spot heat source in this paper. Aiming at the problems to measure the real-time temperature and residual stress of radiator difficultly at high temperature, the two-dimensional finite element models were established. Based on the thermal elastic-plasticity, the temperature fields and stress fields of EBB 6139T and 6204T radiator by two kinds of process were simulated by the software of ANSYS. It is of great value and significance to guide actual production.

本文根据电子束钎焊的特点，将电子束点热源转化为扫描加热时的面热源，针对散热器高温下温度实时测量和残余应力实测困难这一问题，建立了二维有限元模型，以热—弹塑性理论为基础，利用ANSYS软件对6139T和6204T散热器分别按两种电子束钎焊工艺钎焊的温度场和应力场进行了数值模拟，对于指导实际的生产具有重要的价值和意义。

After putting 2×135 MW units of Guodian Suqian Thermal Power Co Ltd into operation, the exhaust steam pressure and temperature from the high-pressure cylinder in operation of the said turbines is more far higher than the designed value.

国电宿迁热电有限公司2×135MW机组N135-13.24/535/535型超高压、一次中间再热、双缸、两排汽、凝汽式汽轮机，自2005年2月和2005年6月分别投产后，额定负荷时高排压力和温度均与设计值偏差较大。

Stress concentration zones and the maximum value of thermal stress of the TiC cermet/iron joint brazed with Ag-Cu-Zn filler metal during cooling were studied in this paper.

本文研究了采用Ag-Cu-Zn钎料在1173K温度下钎焊TiC金属陶瓷与铸铁挺柱实际件时，在冷却过程中接头处的应力集中区和热应力最大值。

Tidal mixing plays a key role in the simulation of the thermal structure of the ocean, and how to calculate the value of the vertical kinematic viscosity coefficient in ocean models is very important.

海流数值模拟从二维过渡到三维，垂直涡动粘性系数的确定成为一个研究热点，潮混合在海洋热结构的数值模拟上起着非常重要的作用。

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。