声场通过轴向阻抗间断面的声压和声质点速度积分相等计算。

The acoustic field is calculated through the integral equality of acoustic pressure and velocity at the axial impedance discontinuous planes.

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注：如信用卡账户内的可用积分少于所需积分，本行将以每260分相等于HK$1的兑换率尽量扣除可供换领的分数。

Note: If the available Bonus Points in the card account are less than the Bonus Points required, the Bank will debit as much as possible at the conversion rate of every 260 Bonus Points to HK$1.

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