The carbon contents and microstructure in the boundary of effective hardening layer were also discussed.

研究了有效硬化层分界处的碳含量及显微组织特征。

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In this paper, the boundary layer function method, an effective method for the solution of singular perturbation, was presented and used to deal with the heat transfer in thin rectangular plates.

本文介绍了求解奇异摄动问题的一种有效方法——边界层函数法，并用此方法研究了在薄矩形板中的热传导问题。

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