考虑了介质滤波和多次反射波的作用，并制成了相应的软件。
The multi-reflection and medium filter are considered in the new method, and the corresponding software is made.
正弦波的作用是离子的分离和离子的检测，任意波形则用于离子的筛选。
Sine wave is used for the separation and detection of ion, SWIFT will be used for ion screening.
它不仅与冲击波的作用情况有关，而且与通风构筑物的形状、大小、自振周期等因素有关。
It is a very complicated problem that is not only related to the shock wave interaction, but also to the shape, size and natural frequency of the ventilation structure.
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