This fat tissue has some rather fascinating acoustical properties.
这个脂肪组织具有相当独特的声学特征。
2
Let's talk about the other end of the acoustical spectrum, sound that is too high for humans to hear—ultrasound.
让我们来谈谈声谱的另一端,人类听不到的声音——超声波。
3
So musical instruments evolved in ways that optimize their acoustical properties, how the instrument vibrates and sends those vibration through the air to our eardrums.