实验设计的美妙之处在于它有效地排除了混淆变量；声学隔离确保了雌性只能对鸣声结构本身做出反应。
The beauty of the experimental design is that it effectively rules out confounding variables; acoustic isolation assures that the female can respond only to the song structure itself.
这就引出了另一个我们需要考虑的变量——建筑材料、墙壁及地板覆盖物的声学性质。
That brings me to another variable we need to consider—the acoustic characteristics of the building materials as well as the wall and floor coverings.
声学-结构灵敏度用于预测结构辐射声压随结构设计变量的变化，该值对结构降噪设计有重要意义。
Acoustic-Structure sensitivity is used to predict the change of acoustic pressure when structure design variable was changed, which is significance for reducing noise of structure.
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