This refers to the use of a miniature BTE hearing aid that is coupled to an ear insert or earmold (vented or unvented) via a tubing of approximately 0.8 mm inner diameter.
就是微
耳背式助听器用一根内径大约0.8毫米的细导管耦合到耳塞
耳模（耳模可以
不通气孔）的验配方式。
;
灶;;This refers to the use of a miniature BTE hearing aid that is coupled to an ear insert or earmold (vented or unvented) via a tubing of approximately 0.8 mm inner diameter.
就是微耳背式助听器用一根内径大约0.8毫米的细导管耦合到耳塞耳模（耳模可以不通气孔）的验配方式。
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