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Tape casting process of aluminium nitride substrate was studied from the following aspects such as particle size,the style of slurry fluid,drying condition and debinding mechanism.

从颗粒尺寸、浆料流体类型、干燥条件、排胶机制等方面对流延法制备AlN陶瓷基板展开了较为系统的研究。

It is pointed out that the solidifying and stoving furnace using far IR heating provides a heating process of radiation, conduction and convection.

简介了三种适用于自行车涂装工艺中的远红外加热元件,指出由远红外加热元件所组成的固化烘道是一种辐射、传导和对流的耦合加热方式。

Combustion and heating process proceeded inside the immersion tube oil frying equipments is analyzed.

分析了浸管式油炸设备内的传热过程,采用经典的对流、辐射关联式编写了计算机程序。

Sunlight shines on the selected sorption layer coated on the outer surface of inner glass tubes through the outer glass vacuum heat collecting tubes; the coated layer sorbs the sunlight radiation energy, changes it into the heat energy and transfers it into the liquid form medium i.e.

它像拉长的保温瓶胆,内管外表面采用磁控溅射工艺,沉积多层渐变选择性涂层,在内外管空间抽成真空,消除了气体的对流与传导热损,并应用选择性吸收涂层,使真空集热管的辐射热损降到最低。

This new approach is based on the arbitrary movement of the reference frame, which is continuously rezoned in order to allow a precise description of the moving interfaces and to maintain the element shape.

并由此导出自动分块技术,不但可以减缓对流,而且能够避免元网格缠绕,提高了计算有效性。

Based on it, the computation method of steam temperature deviation of superheaters and reheaters and the inversion method of their wall metallic temperature in furnace are deduced, and applied in several boilers.

本文通过对过热器和再热器烟气侧对流与辐射复合换热过程的分析,建立了过热器和再热器各受热管段烟气侧局部传热的物理数学模型,导出了适用于大型电站锅炉过热器和再热器的出口汽温计算及炉内管壁金属温度的反演方法。

The convection superheater and high and low temperature reheaters of the 400t/hr and 1000 t/hr utility boilers made in China have exhibited to certain extend temperature imbalances on tube panels.

近年来,在我国400吨/时和1000吨/时锅炉的现场试验中,发现对流过热器和高、低温对流再热器均存在不同程度的同片各管间的热偏差。

In this dissertation, at first, the history and present situation of the research related to overheating is reviewed, and then the research works are carried out in following aspects the calculation of radiative properties of coal combustion, the solution of radiative transfer equation in absorbing-scattering media, the analyses of combined heat transfer processes in flue side, the computation method of steam temperature deviation of superheaters and reheaters and the inversion method of their wall metallic temperature in furnace, the numerical simulation of gas-solid two-phase flow, combustion and heat transfer in furnace, the measurement of outlet steam temperature of superheaters and reheaters, engineering reformation of overheating and optimum design of superheaters and reheaters, etc.

本文在综述了与过热器和再热器超温问题有关的研究历史与现状的基础上,在煤粉燃烧产物辐射特性的计算、含散射问题的辐射传递方程的求解、过热器和再热器烟气侧对流与辐射复合换热及汽温偏差的计算和炉内金属壁温的反演、炉内气固两相流动、燃烧、传热过程的数值模拟、过热器再热器炉外出口汽温的测量、过热器再热器超温问题的工程改造及设备的优化设计等方面进行了研究。

The printed circuit assembly is IR or convection reflowed at a temperature between approximately 280 and 290 degrees C, and maintains solder connection integrity when the printed circuit assembly (36) is later incorporated into a second printed circuit assembly using a standard tin-lead solder system.

该印刷电路组件在约280―290℃的温度下通过IR或对流加热而发生回流,并且当该印刷电路组件(36)随后通过标准的锡―铅焊料系被安装至第二印刷电路板时维持焊料连接整体性。

The formation and development of the meso-β scale convective cloud clusters resulting in rainfallwith different intensities over the middle reachers of the Yangtze River are analysed.

本文对发生、发展在长江中游地区两个中-β尺度云团引起不同强度的降水,进行了对比分析,弄清它们之间的异同,进一步探讨了中-β尺度对流云团产生强降水的条件,从而为难以预报小范围的暴雨提供一些物理依据。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。