laser back scatter device
激光後向射装置

• serial correlation
• serialograph
• serial plate camera
• series
• series circuit
• series expansion
• series feed
• series motor
• series of spectral lines
• series-parallel
• series register
• series spectrum
• series triggering
• series winding
• series wound dynamo
• serration
• serration plug ga(u)ge
• serviceability
• service life
• service manual
• servoamplifier
• servocontrol
• servocontrolled scanning interferometer
• servo-control mirror
• servo-control system