This paper gives the conversion formula from the first type surface integral to the first type curvilineal, and sets a example of using the method to solve exercises.

本文建立了一种特殊的第一型曲面积分与第一型曲线积分的转化公式，并通过实例表明该方法在解决问题时所带来的方便。

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The doped region is located in a top of the fin structure and near a surface of the top of the fin structure and the doped region has a first conductive type.

掺杂区位于鳍状结构的一顶部且接近鳍状结构的顶部的一表面，其中掺杂区具有一第一导电型。

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The middle part of the fruit surface was suggested to be used as the location of the force excitation while estimating the fruit firmness by the resonant frequency of the first-type mode.

当采用第一纵向振型的共振频率来估测水果硬度时，激励点应置于水果外表面的中部；

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