กำลังขยายสูงพิเศษบนพื้นที่ขนาดกลาง ให้เอาต์พุตสูง Lasers are characterised Based on their wavelength within a vacuum. Most "solitary wavelength" lasers deliver radiation in several modes with marginally diverse wavelengths. Although temporal coherence implies some degree of monochromaticity, some lasers emit a broad spectrum of sunshine or emit different wavelengths of light concurren... https://erica110mux6.blog-gold.com/profile