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Ketos ring
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Test ring.
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Ultraviolet source, английский
- Term for the device providing excitation energy for fluorescent materials.
- Uv-a radiation source. unified numbering system: alphanumeric system for identifying alloys according to a registry maintained by astm international and sae international.4 magnetic testing glossary 389 uv-a: electromagnetic radiation with wavelengths between 315 and 400nm. fluorescent nondestructive testing has historically used ultraviolet energy centered at 365 nm.
Spectral luminous efficiency, английский
Spectral responsivity.
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