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มีประสิทธิภาพการแปลงค่าพลังงานที่ดี Lasers are characterised In keeping with their wavelength in a very vacuum. Most "solitary wavelength" lasers generate radiation in a number of modes with somewhat different wavelengths. Whilst temporal coherence implies some diploma of monochromaticity, some lasers emit a broad spectrum of sunshine or emit diverse wavelengths of sunshine https://olivery752imo3.get-blogging.com/profile

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