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头热
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Using finite-time thermodynamics, it is investigated that the optimal function of a refrigerator is affected by three kinds of irreversible of heat resistance, internal friction and cold end heat leak. 采用有限时间热力学研究了传热热阻，内部摩擦和冷头热漏三种不可逆损失对制冷机最优性能的影响。 短句来源 “头热”译为未确定词的双语例句
The maximum refrigeration coefficient of an irreversible Carnot refrigerator is derived. 导出具有传热热阻，内部摩擦和冷头热漏不可逆损失的不可逆卡诺制冷机的最大制冷系数。 短句来源 New Process of Hot Extrusion for STEYR Axle Housing 斯太尔轴头热挤压新工艺 短句来源 Based on the study of the main factors affecting the scale thermal printing image and the analysis of the experimental data,correction method implemented both in software and hardware are put forward. 研究了影响热敏图像层次的主要因素。 通过对实验数据的分析，提出了热印头热印电阻值离散性校正的软件和硬件实施方法。 短句来源 The Maximum Refrigeration coefficient of a Refrigerator with External Heat Resistance, Internal Friction,Cold End Heat Leak 具有外热阻内摩擦和冷头热漏制冷机的最大制冷系数 短句来源 The microstructures in the heat-affected zone (HAZ) of TIG weld were also coarser than that in the HAZ of friction stir weld. TIG焊接头热影响区组织粗化程度较搅拌摩擦焊严重 ; 短句来源 更多 相似匹配句对
DEVELOPMENT OF THIN FILM THERMAL PRINT HEAD 薄膜热印头研制 短句来源 Application of Thermal Shrinkage Cable Joints 热收缩电缆头的应用 短句来源 HOT 热报! 短句来源 Hottest Word 热词 短句来源 head continuous with body; 头连续; 短句来源 
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Their density and properties depend on the type and volume fraction of reinforcement, matrix precursor used and end heat treatment temperature.
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Effect of efficiency of the end heat exchanger on the start-up period of a helium cooler
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In our coaxial pulse tube, this is not possible since the warm end heat exchanger is built inside the aftercooler.
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The best way to measure the enthalpy flow along the pulse tube is to measure the heat rejected at the warm end heat exchanger.
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The slots also act as part of the cold end heat exchanger, providing about 25% of the required heat transfer.
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In previous papers on transient thermocouple for high gas stream temperature measurements, it was assumed that thermal inertia coefficient of the probe is not variable with wire temperature, and that thermal radiation from the probe may be negligible. But our analysis shows that these methods would make the extrapolated temperature to be greatly underestimated.In this paper, for Chromel-Alumel transient thermocouple used in our experiments, we present a new extrapolation method for determining high gas stre... 以前有关高温气流温度测量的动态热偶法的文章都假定，探头的热惯性系数不随丝温变化，且探头的热辐射可忽略不计。可是我们的分析表明，这样做会使外推出的气流温度大为偏低。本文对于我们实验中使用的镍铬－镍铝热电偶，提出了一种新的推算高温气流温度的办法。其中根据热偶材料的比热实验数据，假定热惯性系数Ｔ按Ｔ＝Ｔｏ（１＋ａｔ）规律随丝温变化，方法中也可考虑辐射影响。对于最高达２５００℃的气流温度（速度约１００米／秒），新推算方法给出了令人满意的结果（和标准值比较误差在±６％以内）。我们在实验中发现，探头热结点尺寸对于推算结果有很大影响；还发现，采用动态热偶法实测的对流传热系数α，可以使我们能对同尺寸的稳态热偶作出更精确的辐射修正。 文摘来源 In this paper is presented a thermal elastic-plastic finite element analysis of turbine blade root fastenings. The temperature field is calculated first. Then thermal elastic-plastic stress is analysed. Satisfactory results have been obtained. 本文介绍透平叶根—轮缘接触榫槽连接头的热弹塑性有限元分析,先作温度场计算,然后进行热弹塑性应力分析,皆获得了合理的结果. 文摘来源 In the light of the elastic anti-bending reflection model as put forward in the paper entitled "Approximate Analysis of the Heat Expansion Inward Force", and the conception that ground elastically bends longitudinally and latitudinally, the article makes an analysis of the heat expansion inward for e and displa ement of horizontal asymmetrical buried bends of long pipelines. And discussed in it are the buried symmetrical and horizontal bends and the leagth of tcansiton section without anchors. Examples are ... 本文用“埋地长输管道热胀内力近似分析”一文所提出的弹性抗弯铰模型,应用纵横弯曲弹性地基梁理论,分析了两臂不对称埋地长输管道水平弯头的热胀内力和位移。并对两臂对称埋地水平弯头及锚固墩的过渡段长度进行了讨论。文中还通过算例说明了有关的计算过程。 文摘来源 << 更多相关文摘 
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