A class degenerate quasilinear parabolic systems is considered. The local existence is proved. In some conditions the solution quench in a finite time. And an estimate of quenching time is given.
讨论一类退缩拟线性抛物方程组解的局部存在性与猝灭，证明了在一定条件下解在有限时刻发生猝灭，并给出猝灭时间的一个上限估计。
The result indicates that under different quenching temperature and holding time, the formed bainite morphology are different.
结果表明，在不同淬火温度和保温时间下形成不同的贝氏体形貌。
The effect of quenching temperature, the interval time from quenching to aging and aging institution to 2A70 aluminium alloy pre-stretching plate structure and properties are introduced.
介绍了固溶处理温度、淬火到时效间隔时间及时效制度等对2A70铝合金预拉伸厚板组织和性能的影响；
Research on quenching process has been a hot topic in manufacturing all the time.
淬火过程研究一直是机械制造及工艺领域内的热点问题。
The quenching process is a complex interactive process of the quenching medium fluid fields with the temperature fields, the structure fields and stress fields of the workpiece that changes with time.
淬火冷却过程是介质流场与工件温度场、组织场和应力场相互作用，并随时间变化的复杂过程。
This company endeavors to hardening, normalizing, tempering, high and medium temperature quenching, mesh belt furnace quenching, cementing, time effective freezing and high temperature treatment etc.
本公司是一家致力于从事调质、火、火、中温淬火、带炉淬火、碳、效冰冷及其高温热处理的厂家。
The utility model relates to an electronic quenching instrument, which can be used for measuring the cooling capacity of quenching mediums and the phase change time of work pieces.
电子淬火仪用于测定淬火介质的冷却能力及工件的相变时间。
The key to optimize the operation of viscosity reducing tower was to increase properly the quenching oil spraying quantity, and at the same time keeping.
指出提高减粘塔顶温度的同时增加参与减粘的急冷油喷淋量，降低减粘塔顶温差、控制好塔釜液面是进一步优化减粘塔操作的关键。
In this paper, the fire causes of quenching oil in heat treatment workshop were analyzed, the improved and protective measures were proposed at the same time.
论文就热处理车间淬火油着火原因进行了分析，同时，提出了改进及防护措施。
The quench sensitivity of 7055 aluminum alloy was studied with time-temperature-hardness curve evaluated via interrupted quenching and transmission electron microscopy.
通过测定时间-温度-硬度曲线并采用透射电镜研究7055铝合金的淬火敏感性。
The duration of the quenching pulse should exceed the recovery time of the counter.
脉冲的持续时间应当超过计数器的恢复时间。
A better quenching effect is obtained when the temperature increases; and the quenching result is also influenced by the mixing time of fluorescence quenching agent and the pulp.
结果表明，浆料温度及荧光消除剂与浆料的混合作用时间对荧光消除效果有较大影响。
By analyzing the changes of absorption spectra at different delay time and the quenching rate constants, the mechanism of reactions can be obtained.
通过吸收光谱随光激发的延迟时间变化和测得的反应动力学常数可以推测反应的机理。
By analyzing the changes of absorption spectra at different delay time and the quenching rate constants, the mechanism of reactions can be obtained.
通过吸收光谱随光激发的延迟时间变化和测得的反应动力学常数可以推测反应的机理。
应用推荐