NDK MN

Schaumburg, 美国 中的 商业制造与供应
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NDK has been mass producing quartz crystals of uniform high quality utilizing its own technology. On the basis of this experience NDK …

常见问题解答

问:
Don't ultrasound waves scatter?
答:
The likeliness of scattering of ultrasound waves depends on the size of the sound source and the frequency (wavelength). In general, ultrasound waves transmitted from a smaller...
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