采用将有限声束分解为一系列平面波的方法，对有限声束在液体-固体板-液体结构中的声反射问题进行了分析和计算。
Analysis and numerical computation have been performed for the reflection of acoustic beam on the solid plate surface of layered structure: liquid solid plate liquid.
以往建筑声学图解法，只能解决特殊位置反声板的声波反射问题。
The former graphic method applied in architectural acoustics can only solve the problem of the reflecting sound wave with the sound reflecting board in special positions.
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