她又去把那些鸡放回火里，给它们涂上黄油，愉快地转动着铁叉。
She went and put the fowls down again to the fire, basted them, and drove the spit merrily round.
日本铸剑师们开始采用更细更简单的回火纹。
Japanese swordsmiths started to adopt thinner and simpler temper lines.
他们管这叫硫化或电镀或者是回火之类。
三种。它们是淬火、回火和退火。
三种。它们是淬火、回火和退火。
钢是通过先加热后冷却来回火的。
三个过程：它们是淬火、回火和退火。
热处理过程包括：退火、淬火与回火。
The heat treatment process comprises annealing, hardening and tempering.
印尼村民返回火山斜坡。
引起脆性断裂的原因是成型模产生了回火脆性。
The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness.
热处理包括正火、正火和回火或者淬火和回火。
Heat treatment shall consist of normalizing normalizing and tempering or quenching and tempering.
也被称为回火时效。
在回火过程中，不但要考虑温度而且要考虑时间。
In the process of tempering, some consideration should be given to time as well as to temperature.
经过回火之后，钢的强度增大，因为其晶粒变细了。
After having been tempered, the steel becomes stronger because its grains get finer.
钢的热处理工序包括硬化、回火、退火和表面硬化。
The procedures of heat treatment of steel include hardening tempering annealing and case hardening.
钢的热处理操作主要有三种，即：淬火、回火和退火。
There are three main operations in the heat treatment of steel: hardening tempering and annealing.
钢的热处理操作主要有三种，即：淬火，回火和退火。
There are three main operations in the heat treatment of steel: hardening, tempering and annealing.
回火作业可以描述为渗碳体析出和凝聚或聚结的过程。
The tempering operation may be described as one of precipitation and agglomeration or coalescence of cementite.
减少残余奥氏体和马氏体碳化物的降水预计的回火工艺。
Retained austenite reduction and carbide precipitations in the martensite are anticipated by the tempering process.
回火完全淬硬钢得到的最终组织结构被称为回火马氏体。
The final structure obtained from tempering a fully hardened steel is called tempered martensite.
二次回火后硬度变化不大，三次回火后，硬度反而降低。
Two times temper has little effect on the hardness, three times temper will decrease the hardness.
如果发动机回火，进气歧管骤增的压力就迫使阀门向后移动。
If the engine backfires, the sudden pressure in the intake manifold forces the valve back.
应用：退火，淬火，锻造，烧结，回火，玻璃和陶瓷的热处理。
Applications: annealing, hardening, forging, sintering, tempering of metals, heat treatment of glass and ceramics.
由于马氏体这一淬硬钢主要成分的不稳定性，使得回火成为可能。
Tempering is possible because of the instability of the martensite, the principal constituent of hardened steel.
通过合并磨削热模型和回火效应可以预测工件磨削后的表面硬度变化。
Combining the tempering behavior with the grinding thermal model, the change in surface hardness due to grinding heat could be predicted.
通过合并磨削热模型和回火效应，可以预测工件磨削后的表面硬度变化。
Combining the tempering behaviour with the thermal model of grinding, the change in surface hardness due to grinding heat can be predicted.
通过合并磨削热模型和回火效应，可以预测工件磨削后的表面硬度变化。
Combining the tempering behaviour with the thermal model of grinding, the change in surface hardness due to grinding heat can be predicted.
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