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Based on the classical nucleation theory and the time-dependent nucleation theory, the thermodynamics and the kinetics for the nucleation of decagonal quasicrystal have been discussed in det...

大量实验结果表明,惰性形核涂层的非晶化程度、熔体过热度、过热保温时间以及循环过热次数等工艺参数将显著影响熔体的初始过冷度。

When Ts is 850 ℃,grains are fined and the size of βphase and the distance betweenβphase pasticles are small.The corrosion barrier effect ofβ phase onαphase is enhanced and the iron content does not increase much at this temperature.So the corrosion resistance is improved.The corrosion resistance of AZ70 alloy falls off when Ts is 890 ℃,which attributes to the presence of microporosity,hot cracking and increase of iron content.

过热温度为810 ℃时,热速处理对合金耐腐蚀性能的改善作用并不大;过热温度为850 ℃时,热速处理显著细化了合金晶粒,β相的尺寸和间距变小,β相对α相腐蚀的阻碍作用增加,而且合金中的铁含量并没有提高,从而改善了合金在试验条件下的耐腐蚀性能;过热温度为890 ℃时,组织中存在热裂纹和显微疏松缺陷,合金含铁量显著增高,合金的耐腐蚀性能下降。

The previous literatures indicate the inversion temperature exists under superheated steam drying with an atmospheric pressure, when the temperature of superheated steam is higher than the point of inversion temperature, the drying rate of superheated steam is faster than that of air drying, but if the temperature of superheated steam is lower than the point of inversion temperature, the drying rate of superheated steam is slower than that of air drying.

已有的研究表明,在过热蒸汽干燥时存在一个温度点,称为"逆转温度",当过热蒸汽的温度高于"逆转温度"的温度时,过热蒸汽干燥速率比空气要快,低于逆转温度时则正好相反。由于木材浮压干燥的工业化应用是在负压区实现的,因此对真空状态下过热蒸汽干燥是否也存在"逆转温度"问题的研究非常重要。

Overheating or not is an unquantifiable issue. If an increase rate of 9.9% is not considered overheating, can 10% be considered overheating?

过热与否不是一个数量问题,9.9%的增长率不算过热,10%就过热了?

Or, it overheats or something and we die from heat, or from the gas because of the heat. The heat makes the gas come out of the ocean.

或高温过热而导致我们被热死,或因过热而产生的天然气致死,因为过热会使天然气从海洋中冒出来。

Or, it could be the global warming and floods from the ice, from the poles. Or, it overheats or something, and we die from heat, or from the gas because of the heat. The heat makes the gas come out of the ocean.

或是全球暖化造成两极冰山融化而形成洪水,或高温过热而导致我们被热死,或因过热而产生的天然气致死,因为过热会使天然气从海洋中冒出来。

The test results show that the crispest HAZ occurs in the process of welding of the 14MnNbq steel on the first heat circulation submerged welding overheat zone and the second heat circulation submerged welding overheat zone plus the not entirely re crystallized zone. The 14MnNbq steel has a tendency of being crisper due to overheat than the SM490C steel is. In order to ensure the toughness of the welding HAZ′s, the welding wire capacity should be properly controlled during welding.

由试验结果表明,14MnNbq钢焊接HAZ最脆区出现在一次热循环的埋弧焊过热区及二次热循环的埋弧焊过热区+不完全重结晶区;14MnNbq钢比SM490C钢有更强的过热脆化倾向,为确保焊接热影响区韧性,焊接时应适当控制焊接线能量。

The previous literatures indicate the inversion temperature exists under superheated steam drying with an atmospheric pressure, when the temperature of superheated steam is higher than the point of inversion temperature, the drying rate of superheated steam is faster than that of air drying, but if the temperature of superheated steam is lower than the point of inversion temperature, the drying rate of superheated steam is slower than that of air drying.

已有的研究表明,在过热蒸汽干燥时存在一个温度点,称为&逆转温度&,当过热蒸汽的温度高于&逆转温度&的温度时,过热蒸汽干燥速率比空气要快,低于逆转温度时则正好相反。由于木材浮压干燥的工业化应用是在负压区实现的,因此对真空状态下过热蒸汽干燥是否也存在&逆转温度&问题的研究非常重要。

Because of the off-phase motor running to recognize the harm caused by different fault in the implementation phase of the motor protection have had two different views: that the broken phase to the electrical damage caused by overheating point of view to the implementation of the motor overheating protection or inverse-time characteristics of overcurrent protection, thermal relays the resulting program, thermal resistance package with over-current fault protection program delay, and other programs; that the break caused by phase to the motor windings high-voltage breakdown back-EMF's view of Open-phase protection program to take instantaneous action, and some electronic-type protectors available.

由于对断相运行给电机造成的危害认识不同,因此在对电机实行断相保护时产生了两种不同的意见:认为断相给电机造成过热损坏的观点要对电机实行过热保护或过流反时限特性保护,由此产生了热继电器方案、热敏电阻方案、断相过流延时保护方案以及其他一些方案;认为断相给电机绕组造成高压反电势击穿的观点,对断相采取瞬时动作保护方案,于是一些电子式保护器问世。

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。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。