Big perforation of tympanic membrane led to mixed deafness, the sensitivity increased on ABR.
鼓膜大穿孔导致混合性聋,对ABR灵敏度增高。
The rules of perforation exposing process and combustion of mixed charge under different temperature, propellant type and web size are compared.
比较了不同的温度、药型和弧厚条件下,混合装药的破孔及燃烧规律。
The rules of perforation exposing process and combustion of mixed charge under different temperature, propellant type and web size are compared.
比较了不同的温度、药型和弧厚条件下,混合装药的破孔及燃烧规律。
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