本文建立了仅受辐射加热的煤粉颗粒群着火的不稳态模型。
This paper presents an unsteady-state model on ignition of pulverized-coal cloud heated by radiation.
对瞬态不稳态导热过程进入正常情况阶段的判据，不同的文献中有不同的要求。
Requirements concerning the criterion of transient unsteady state conduction during the process of entering the stage of normal condition are quite different as they appear in various literature.
通过稳态和不稳态的高速可压缩流体超音速激波和激波传播特性的分析，可以评估该算法的效率。
Efficiency of the combined procedure was evaluated by analyzing supersonic shocks and shock propagation behaviors for both the steady and unsteady high-speed compressible flows.
基于一维不稳态导热分析解，提出一个在第三类边界条件下的二维和三维不稳态加热时间的计算方法。
Based on the one dimensional analytical solution, a new calculation of two dimensional and three dimensional unsteady heating time is provided under the third boundary conditions.
针对热塑性聚合物在锥形量热仪中燃烧测试时的熔融行为，提出了有限厚度的聚合物固体一维不稳态燃烧微分模型。
Based on the study of melting behavior of thermoplastic polymers tested in the cone calorimeter, a differential numerical model for one-dimensional unsteady burning of polymers was put forward.
用解析方法和数值方法在理论上研究了光折变晶体中的稳态矢量空间光孤子及有偏压光伏光折变晶体中光束的调制不稳定性；
The steady state vector spatial solitons in photorefractive crystals and the modulation instability in biased photorefractive-photovoltaic crystals are studied by both analytic and numerical methods.
制冷剂在通过毛细管过程中，存在一个不稳定的亚稳态流动阶段。
A metastable phase exists during the refrigerant flowing through the capillary tube.
研究了稳态情况下一维宽光束在有偏压双光子中心对称光折变晶体中的调制不稳定性。
The modulational instability of one-dimensional broad optical beams in biased two-photon centrosymmetric photorefractive crystals under steady-state conditions has been investigated.
研究了稳态情况下一维宽光束在有偏压双光子中心对称光折变晶体中的调制不稳定性。
The modulational instability of one-dimensional broad optical beams in biased two-photon centrosymmetric photorefractive crystals under steady-state conditions has been investigated.
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