The AARP doesn't need a hearing aid manufacturer to function.

AARP的运营不需要一个助听器的生产商。

youdao

It is usually permanent and requires rehabilitation such as the use of a hearing aid.

听力障碍往往是永久性的，需要使用助听器等康复手段。

youdao

Because I can barely hear, I need a hearing aid.

因为我几乎听不见，所以需要助听器。

youdao

Cochlear implants, so that's the same kind of function as a hearing aid, to improve hearing, but using a different mechanism.

人工耳蜗移植术,人工耳蜗与助听器同作用相同,都可以改善听力,只是两者原理不同

耶鲁公开课 - 生物医学工程探索课程节选

The third company that Fay worked for is a hearing aid company called EarLens Corporation.

FORBES: Michigan I-Corps Program In Ann Arbor Begins Today

It could be a hearing aid, individually tailored to the shape of the user's ear.

ECONOMIST: A third industrial revolution

He was recently fitted for a hearing aid -- one toll of being exposed to many explosions.

CNN: Battlefield breakdown: The full price of war in Iraq