In severe cases, hearing loss may be profound with descending curve, which imply that the hearing loss is severer as the test frequency becomes higher.
在严重病例，重度的听力下降表现为下降型曲线，即随着测试频率的上升，听力下降的程度越来越重。
2
The impedance audiometry test showed the hearing improvement had no definite relationship with compliance value and tympanometry curve.