将唇口滑动而上的传热归结为第二类边界条件；
The authors assume that the heat flux at the sliding surface of the lip occurs for the second boundary condition.
典型的管内对流换热实验均在第一、第二类边界条件下进行。
Typical experiment of convection heat transfer in tubes is under the first or the second boundary condition.
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.
根据边值问题的唯一性原理，由此积分解表达式给出了第一类和第二类边界条件的积分解表达式。
According to uniqueness theorem, the integral formulations of the first class boundary condition and the second class boundary condition are given form the above integral formulation.
使用边界积分方法求解已知第二类边界条件的拉普拉斯方程或泊松方程时，理论上解是不唯一的。
Theoretically the numerical solution of Poisson's equation or Laplace's equation plus Neumann boundary condition calculated by the boundary integration method is not unique.
本文就非闭光滑曲线上关于第二类边界条件的复三次样条函数的逼近误差进行了论讨，取得了较好的结果。
In this paper, we discussed the approximation errors of complex cubic interpolation spline on open smooth curves under the second boundary condition and got the better results.
本文就非闭光滑曲线上关于第二类边界条件的复三次样条函数的逼近误差进行了论讨，取得了较好的结果。
In this paper, we discussed the approximation errors of complex cubic interpolation spline on open smooth curves under the second boundary condition and got the better results.
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