The “P” mode is in reality a semi auto mode, that is the P is the first in the line of programmed modes, but in practical use, the camera still continues to do auto exposure.

程序模式实际上是一种半自动模式，P代表可编程化的拍摄模式。 实际使用中，相机仍然工作在自动曝光模式。

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Theoretical models and real data processing results show that the method is satisfactory and practical for the DMO processing of P-SV wave.

理论模型和实际资料处理结果表明，该方法是一种较理想、实用的转换波DMO处理方法。

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The result shows that P PEM is a simple, clear and practical original wave field model, which can be widely used in coastal works, such as the selection of harbour sites.

事实证明：P-PEM是一种简洁、实用的原始波场计算模型，适用于海岸工程方案规划比选等诸多领域。

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