本文在分析二阶绕射势产生机理的基础上，提出了二阶绕射势的解析解，从而得到了作用于大直径圆柱上二阶波浪力的协调表达。

On the basis of analysing the mechanism of generation of second-or-der diffraction potential, an exact solution is proposed in this paper.

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HAR2靠近在手上有强表达的基因，在人类特有的手协调方面发挥着某些功能。

And HAR2 is near a gene with strong expression in the hand, perhaps playing some role in human-specific hand coordination.

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有较强的分析及表达能力，同时具有较强的组织协调能力。

With strong ability of analysis and expression, as well as strong ability of organization and coordination.

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