oxygen hydrogen torch
氢氧吹管，氢氧切割器

• cylindrometer
• cymometer
• cymoscope
• cystocope
• cytospectrophotometry
• Czerny-Turner monchromator
• Czerny-Turner mounting
• Czochralski Technique
• dactyloscopy
• dada output
• Dagor lens
• Dall-Kirkham Telescope
• daltonism
• damage threshold
• damped electron oscllator
• damped harmonic oscillator
• damped harmonic wave
• damped least square method
• damped least squares
• damped oscillator
• damped vibraion
• damped wave
• damper
• damping
• damping characteristic