在这一过程中如果可以经鼓室隔膜通气的话，尽管峡部闭锁也不会产生上鼓室的负压。
In this process, if may pass through drum room mutual lack of understanding ventilation, although the canyon department block system will not have on the drum room negative pressure.
既往中耳炎病史可使鼓室峡部钻膜肥厚增生而闭谈。
Tympanitis medical history may cause the drum room canyon department formerly to drill the membrane plump proliferation to shut discussed.
如鼓室峡部的闭锁不能同时缓解。
If the drum room canyon's department block system cannot also alleviate.
如鼓室峡部的闭锁不能同时缓解。
If the drum room canyon's department block system cannot also alleviate.
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