基于理论分析建立了第三类边界条件下的煤粒瓦斯扩散方程，并给出了解析解。
The differential equations of coal particle gas diffusion under the third kind boundary condition and its analytical solution have obtained on the basis of theoretical analysis.
将温度和换热系数按照第三类边界条件予以施加，计算得到活塞的稳态温度场；
The temperature and heat exchange coefficient were applied on FEA model as third boundary condition and the temperature field was calculated.
第一类边界条件、第二类边界条件和第三类边界条件很容易的引入该算法无需特殊处理。
The first boundary condition, the second boundary condition and the third category boundary conditions would be very easy to introduce the algorithm without special treatment.
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.
通过引入辅助问题并利用积分变换方法，推导出二维、双层球壳红外CAT通用算法，并对内表面为第三类边界条件进行了分析和讨论。
A general solution of IR CAT for two dimensions and two layers spherical shell is developed by introducing an auxiliary problem and using the integral transforms.
本文讨论描述流体在稀疏介质中流动规律的一类拟线性抛物型方程具有第三类非线性边界条件的初边值问题。
This dissertation is to discuss the laws of fluids in porous medium for original boundary value problem of some quasi-linear parabolic equations with the third type nonlinear boundary condition.
讨论了一类半线性抛物型方程具有第三类非线性边界条件的初边值问题。
It is discusses that the initial-boundary value problem under the third non-linear boundary condition for a kind of semi-linear parabolic equation.
针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；
The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.
针对某增压柴油机振荡冷却油腔活塞的非对称结构，建立全活塞活塞销连杆小头的有限元模型；提出了振荡冷却油腔的第三类热边界条件的数学描述并进行了验证；
The FEM for the assembly parts of piston, gudgeon pin and small-end of connecting rod is constructed to investigate a diesel engine piston with an oscillating-oil-cooling channel.
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