The beauty of the experimental design is that it effectively rules out confounding variables; acousticisolation assures that the female can respond only to the song structure itself.
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。
2
The acousticisolation of headphones tends to highlight this dulling effect.
耳机的隔音效果会使得这种现象更加明显。
3
These processes, as well as providing acousticisolation and a surface for finishes, also air-seal the interior.