Da Inglese a Italiano Medico/Sanitario Medicina: Strumentazione hearing aids

The conventional approach to protecting hearing instruments
from environmental exposure has been to
seek out areas and/or spots where visible damage occurred
and coat with a suitable material. The rationale
for this approach is that by encapsulating the problem
point, the area would be protected. Certain areas,
such as all electrical contacts for the battery springs
and contacts for audio or programming inputs, could
not be encapsulated.