冷却的

Under function of fuel pump, one way enters into nozzle burning; another way enters into cooling cavity. Because carbinol vaporize hidden heat is big, and absorbs a great amount of heat in cooling cavity, and nozzle surfaced temperature rapidity drop to below 30EDG C, thereby aim of cooling nozzle is reached.

燃料在泵的作用下一路进入喷嘴进行燃烧；另一路进入冷却腔，由于甲醇的汽化潜热很大，在冷却腔内吸收大量的热量，使喷嘴表面的温度迅速下降到30℃以下，从而达到冷却喷嘴的目的。

By the cooling curve and the temperature field, it can he known that, the solidification time of ribbon is 1.0×10^(-4)s, the even solidification rate of ribbon with 60 μm thickness is about 10^6K/s, and the temperature of cooling process does not obviously go back by the release of solidification latent heat. The solidification rate of ribbon is at 0.010-0.394 m/s, and it changes from high to low with the prolonged solidification time.

由冷却曲线和温度场曲线类比结果可知，带子的凝固时间为1.0×10^(-4)s；单辊快淬的平均冷却速度在10^6 K/s数量级，且凝固潜热的释放不会明显地引起冷却过程的温度回升；带子的凝固速度在0.010~0.394 m/s范围之内随凝固时间的延长逐渐由大变小。

Research adds low pH indicator in gas mixture CO air air packs pair of cooling porky to last the effect, determine the microbial, manage in process of keep in storage is changed and organic index change, the air of cooling pork air that suits certainly packs gas mixture scale to be 1%CO/50%CO2/49%N2, not only lengthened goods shelves period, and refrigerative flesh is in whole goods shelves period inside present inviting bright red.

探究在混合气体中添加低浓度的CO气调包装对冷却猪肉的保鲜效果，测定贮存过程中的微生物、理化和感官指标的变化，确定适合的冷却猪肉气调包装混合气体比例为1%CO/50%CO2/49%N2，不但延长了货架期，而且使冷却肉在整个货架期内呈现诱人的亮红色。

A test model of four co-rotating disks was developed as the simplified version of a typical internal cooling system of a gas turbine compressor. The investigation was on the distribution of local heat transfer coefficient and the averaged nusselt number of the downstream main disk. Experimental analysis may lead to following conclusions: the distribution is not of monotony and multi-peaks were found along the disk surface,Nu increases with the decrease of the rotational reynold number Re(subscript w,Nu increases with the axial reynold number and the grasholf number.

针对航空发动机多级压气机盘腔的冷却问题，对具有轴向通流的三腔模型进行了系统的研究，通过对局部换热特性与平均换热特性的分析，可以表征旋转盘的热应力水平和相对冷却效果，结果表明表征旋转盘热应力水平的局部换热特性在旋转盘的半径上呈多峰分布，表征相对冷却效果的平均换热特性与旋转雷诺数Re、进气雷诺数Re以及格拉晓夫数Gr有关，当Re及Gr增加时，平均努塞尔数Nu随之增加，而Re的增加使之减小。

In this thesis, a realization of laser cooling and trapping of rubidium atoms is reported. Firstly, the history and development of laser cooling and trapping of neutral atoms and molecules is reviewed. Present study status and future development is prospected.

本学位论文围绕Rb原子的激光冷却与囚禁，报道了以下几个方面的工作：综述了激光冷却与囚禁原子、分子的研究历史及发展过程，介绍了国内外的研究现状和最新成果，展望了原子的激光冷却与囚禁技术的应用前景。

Recites passive cooling technology methods of buildings, describes the structure of each cooling methods and compares its performance, in the same time, summarizes passive cooling technology methods of buildings fit for drought and torridity area, introduce basal principle of moisture-conditioned material, new pattern porosity moisture-conditioned material Used in buildings, recommend the structure and transfer principle of this material.

从叙述建筑物被动冷却方式入手，对各种冷却方式的结构特征进行了描述和性能比较，同时总结了适用于干热地区环境因素的建筑物被动冷却方式，并重点介绍了近年来迅速发展应用的调湿材料的基本原理，提出了一种新型的用于贴附于建筑物墙体外表面的多孔调湿材料，简述了这种材料的结构特征及内部的传递机理。

So far, the cooling system in calibrator is designed by experience. It is difficult to test the effect of different cooling system on cooling time of profile by experimentation.

迄今为止，定型模冷却系统的设计大都是凭经验进行的，然而通过实验的方法来测试不同冷却系统对型材冷却速度的影响是相当困难的。

This paper, basing on the software system, analyzes the quenching process at point of diathermanous subject view; introduces the instrument of measurement and the experiment principle; concretely analyses the mathematic models and processing method of the data-processing system, which is the theoretic groundwork for programming; describes the makeup of the software and how to design and actualize it.

论文部分基于作者所开发的淬火介质冷却性能测试软件系统，从传热学的角度分析了淬火冷却过程；介绍了淬火冷却性能测试设备及原理；重点分析了数据处理系统部分数学模型的建立及相应的数学处理方法，这部分是系统编程的理论基础；并概述了系统的构成，软件的设计及实现。

The total static loads and dynamic loads are summed as 4.692W and 38.4W, respectively. And comparison between the double-wall cooling method and the cooling tube method for the 77 heat shield has been discussed to provide the thermal parameters for flow process simulation. The critical thermal parameters of the main components of the QWR cooling system were determined for parallel arranged QWR cryostats. The mass flow and time for cool-down of the QWR to 4.2K was also estimated.

本文在详细描述恒温柜冷却系统的基础上，详细计算了4.2K冷质量与77K冷屏的辐射漏热，同时，还对恒温柜内部支撑系统计算了变物性下的导热漏热，得出了恒温柜系统的静态和动态热负荷分别为4.692W和38.4W，并分析比较了液氮冷屏采用夹层冷却方式与铜管缠绕冷却方式的优缺点，为流程模拟的参数确定提供了依据。

To understand the different heat transfer characteristics of regenerative cooling in plug nozzle at different operating conditions, computational model of two dimensional plug nozzle and internal nozzle were established and numerical simulation was employed. Heat transfer results of the internal nozzle and the parameter distribution at the outlet were obtained. Flowfield and heat transfer characteristics of the plug at different operating conditions with different coolant flow rates were investigated.

为了解塞式喷管发动机高低空不同的再生冷却换热特性，分别对二维型面内喷管和塞锥建立计算模型，采用数值模拟的方法，得出内喷管的冷却换热结果和出口参数，重点研究了塞锥在地面和设计点工作时的不同换热特性及其冷却剂流量的影响。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。