standard/stabilized light sources
量测用标准光源

• quasi-tunable
• quasi-undirectional
• quaternary laser
• quck silver
• quencher
• quenching
• quick loading
• quick-setting cement
• quick-setting level
• quiescent operation point
• quiet run
• quill
• quinary
• quintupler
• quotient
• Q-value
• Q value of cavity
• rabbet
• Racah's notation
• race
• race rotation
• racing test
• rack
• rack and pinion gearing
• rackwork