laser schlieren apparatus
激光纹影仪

• pump modulation
• pump photon
• pump power
• pump-power chart
• pump-power modulation
• pump pulse duration
• pump rate distribution
• pump reflector
• pump stauration in optical parametric oscillators
• pump transition
• pump transition probability
• punch
• punched card
• punched paper tage
• puncher
• punctrue
• punctum
• punctum caecum
• pupil
• pupil distance
• pupil function
• pupil imaging
• pupillery axis
• Pupillograph
• Pupillometer