| 1. | A hearing aid helps to overcome defects in hearing .
助听器有助于克服听觉缺陷。 |
| 2. | One remarkable use for transistors is in hearing aids .
晶体管的一项特别引人注意的应用是在助听器方面。 |
| 3. | It is possible today to have hearing aids which help greatly in overcoming loss of hearing .
现在已能使用助听器，这对于克服听觉损伤大有裨益。 |
| 4. | Nearly all hearing aids now manufactured make use of transistors, and are much the better for it .
目前制造的助听器差不多全都使用晶体管，而且这样更好。 |
| 5. | Another is the hearing aid, which can be made so small that it can become part of the frame of a pair of spectacles .
另一个例子是助听器，它可以做得非常小，小得可以成为眼镜架的一部分。 |
| 6. | They can be used in devices for which vacuum tube valves were unsuitable, such as in hearing aids designed to fit into the ear .
它们能用在不宜采用真空管的装置上，例如能用在放在耳朵内的助听器里。 |
| 7. | He gave the tottering ancient a strong handshake and bellowed at the box of his hearing aid, "well, well! you look better than i do, old top. "
他使劲握了握那个龙锺老人的手，对着他的助听器大声嚷道：“好哇，好哇，老伙计。你的气色比我强。” |
| 8. | Hearing aids . part 5 : nipples for insert earphones
助听器.第5部分:塞入式耳机塞头 |
| 9. | Discussion on the hearing aid fitting for deaf children
怎样为聋儿验配好助听器 |
| 10. | A . ask client to remove hearing aid and close eyes
嘱受检者取下助听器，闭眼。 |
