density of imperfection
不完整性密度，缺陷密度

• states and energy levels of atom
• state verification
• static balance
• static characteristic
• static charge
• static check
• static control
• static crossed-field electron multiplication
• static electricity
• static equilibrium
• static error
• static field device
• static friction
• staticon
• static performance
• static photomultiplier
• static stability
• static tracking error
• station
• stationarity
• stationary
• stationary center
• stationary fit
• stationary laser oscillator
• stationary mirror