After the auditory bone chain, the tympanic membrane teach other people the external auditory meatus, causes the airvibration.
经听骨链、鼓膜传人外耳道，引起空气振动。
2
The arranged work change-over switch can alarm simultaneously by changing over the inductive alarm of human body, the induction of human body, and the airvibration.
所设置的工作转换开关可以切换人体感应报警、人体感应与空气振动同时报警。
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.