internal exposure
(1)内曝光
(2)内照射

• alexanderson altimeter
• Alexandrite
• algebraic complement
• algebraic expression
• algebra of matrices
• Algerithm
• algorithm
• algorithmic language
• aliaing version
• Aliasing
• aliasing error
• alias-type transformation
• alibi-type transformation
• sulphide
• sulphide phosphor
• sulphur
• sulphur hexafluoride
• sulphuric-acid
• sulphuric-acid battery
• sulphurizing
• sulphur laser
• sulphur sensitization
• sum
• sum frequency
• sum frequency generation