II. Translate the following sentences into your own language:
1. By using ultrasonic waves we can shake, break, boil, cut, grind and clean.
2. The future is expected to bring a great many new applications for ultrasonic.
3. Ultrasonic appears to drill holes through materials which withstand any other attempts at penetration.
4. Manufacturers make use of the penetrating power of ultrasonic waves when inspecting their products without the necessity of taking them apart.
5. It was about one hundred years ago that the first useful tools for ultrasonic experiments were invented.
6. It is by ultrasonic that we can detect minute flaws and measure the thickness with great accuracy.
7. The Dalton whistle has been proved to produce sound waves beyond human hearing.
8. The field of application of electronics having considerably grown.
9. Now we can perform many industrial processes with great accuracy.
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