温度系数

Improved in the traditional process foundation has eliminated the dregs and the drying craft, its acteristic to not have the asbestos, the textile fiber distribution to be even, the luster pure white, did not have the lamination, the slag globule few (four offcenter to eliminate dregs), the bulk specific gravity basis use nimble adjustment, the intensity big (including enhancement textile fiber), the elasticity good, mechanical workable.

材质 耐火纤维产地山东东营产品类别阻燃纸产品种类保温网格布导热系数 0.075 等级 1 品牌祥雨使用温度 900-1000 形态纤维状应用范围隔热绝缘耐火产品描述：由精选硅酸铝陶瓷纤维棉为主要原料采用湿法成型工艺制成。

The effect of the equivalent heattransfer coefficient between the bar and iron core on the distribution of temperature is also analyzed during starting.

分析了导条与铁心之间的等效换热系数的变化对电机起动温度场的影响。

The prototype system considers the geometry of the building, the position of the source and receiver, and the acoustic properties of the sound transmission (the sound absorption coefficient of the walls and the temperature of the environment). The system then builds the beam tree by beam tracing, and finds all possible paths of the transmission and reflection. All sound paths are then traced to compute the sound obtained by the receiver.

本系统利用建筑物的几何空间、音源与接收者的资讯，考虑建筑材料的吸音系数、环境的温度等声学相关属性，使用光束追踪法建立光束树，寻找各种可能的穿透与反射路径，建立声音的路径模型，并且计算声音的衰减，处理声音的音响输出，来模拟接收者所听到的声音与回响。

Thermal Barrier Coatings is a kind of ceramic layer of excellent high temperature oxidation resistance as well as very low thermal conductivity, which is deposited onto the surface of substrate by the assistant of bond coat layer. TBCs can effectively reduce the service temperature of the protected substrate, alleviate the thermal shock loading, reduce the requirement for cooling air, and so, the thermal efficiency of apparatus is improved. Therefore, TBCs have been widely used in the fields of space flight, chemical industry, and metallurgy or energy sources industry.

热障涂层(Thermal Barrier Coatings，简称TBCs)是一种陶瓷涂层，具有优良的抗高温氧化和非常低的热传导系数，它通过粘结层沉积在耐高温金属或超合金的表面，可以有效降低被保护基材的服役温度，减轻其热冲击载荷，降低对冷却空气的需求，提高器件的热效率，从而被广泛应用于航空航天、化工、冶金和能源等领域。

The major works are as follows: 1 The 3-D numerical model of U-sharp flow passages is set up. The single-phase fluid flow and heat transfer are simulated for the U-sharp smooth and rib-roughened flow passages with FLUENT software. Their performance curves, temperature field and velocity vector are obtained and the local heat transfer and flow pressure-drop distribution along flow passage are analyzed. It is revealed that the ribbed flow passages can enhance heat-transfer and make the temperature more uniform, but it increases the pressure-drop to more extent. 2 The influences of diaphragm depth, channel width and board spacing on the performance are investigated.

建立了层叠式蒸发器U形流道的3维湍流模型，用FLUENT软件对尺寸相同的U形光滑流道和肋化流道中单相流体的传热和流动进行了数值模拟，得到了两种流道的传热和阻力性能关系曲线及速度矢量图、温度场，分析了光滑流道和肋化流道的局部换热系数及沿程压降变化，结果表明流道的肋化能有效的增强传热，而且使流体的流动和传热更加均匀，但也较大地增大了阻力。

A mathematical model of the direct chill casting process for superlight Mg-Li alloy (LA141) slab has been developed using the finite differential method. Thermal boundary conditions including primary and secondary cooling conditions, have been selected based on knowledges of the physical process and the literatures. The variations of heat transfer coefficient between slab and dummy block interface resulting from the deformation of the slab have been considered.

中文摘要：运用有限差分法，对超轻Mg-Li合金（LA141）板坯直冷连铸过程温度场进行数值模拟，根据实际过程的物理现象以及文献资料确定包括一冷区、二冷区在内的边界条件，并且考虑底模与铸坯之间随着铸坯的变形而引起的换热系数的变化。

For thin polycrystalline films, especially those with columnar structure, once the diameter of grains on the film surface is larger than the film thickness, the total area of above and under basal planes (film-substrate interface) will be larger than that of side plane. And if the film precipitates on the substrate with thermal expansion coefficient different from that of the film, great thermal stress will be introduced during annealing.

对于薄膜特别是柱状晶薄膜，当晶粒在膜平面内的尺寸大于膜厚时，柱状晶粒的上底面和下底面的面积将大于侧面的面积，如果薄膜还附着在与其热胀系数不同的基体上并在不同于沉积温度的条件下退火时，膜中将存在较大的热应力。

The hot cracking theory about solidification contraction and its compensation was thoroughly proved through experiments carried out for Al-Cu alloys in semi-eontinutive directional solidification vaecume device.

根据热裂纹形成的凝固收缩补偿理论，定义了反映合金热裂倾向的不可补缩温度区间、热裂倾向系数、凝固末期收缩速率和不可补缩长度等指标。

He relations of the thermal conductivity coefficient and density of rock - mineral cotton insulating materials andtemperature are studied by means of steady - state method.

用稳态法研究岩矿棉隔热材料导热系数与密度及温度的关系。

The results showed that the solubility of Jatropha curcas L.seed oil in methanol increased at the presence of methyl esters,which could enhance mass transfer.Distribution coefficients of methanol between...

结果表明，脂肪酸甲酯的存在可有效提高麻疯树籽油在甲醇中的溶解度，因此可在一定程度上改善传质效果；甲醇在甲酯相和甘油相之间的分配系数受到温度和甘油含量的显著影响，在低温下可更为彻底地分离甘油副产物，并降低甲醇回收的能耗。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。