外耳包括耳垂和外耳道——用于把声波引入鼓膜，使之振动鼓膜。
The outer ear includes the ear lobe and external auditory canal, which funnels sound waves toward the eardrum (or tympanic membrane) allowing it to vibrate.
此外，它还描述了鼓膜的振动，电磁波的传播等物理过程。
Moreover. it also describes vibration of drumhead and spread of electromagnet wave.
声波降调的可能性增加，并且随着鼓膜双次振动带来的反馈效应，音高也会随之降低。
This added resistance causes the waveform frequency to drop, lowering the pitch of the sound you hear internally and creating a sort of feedback effect that stimulates the eardrum from both sides.
经听骨链、鼓膜传人外耳道，引起空气振动。
After the auditory bone chain, the tympanic membrane teach other people the external auditory meatus, causes the air vibration.
外耳包括耳垂和外耳道——用于把声波引入鼓膜，使之振动鼓膜。中耳将振动鼓膜的声波转化成对耳蜗——内耳的接听结构——的机械振动。
The middle ear converts sound waves that vibrate the eardrum into mechanical vibrations for the cochlea, the hearing part of the inner ear.
鼓膜的振动发声是由两侧鼓膜肌交替收缩驱动的。
The song is produced by vibrations of the tymbal driven by alternating contractions of the tymbal muscle on both side.
鼓膜的振动发声是由两侧鼓膜肌交替收缩驱动的。
The song is produced by vibrations of the tymbal driven by alternating contractions of the tymbal muscle on both side.
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