vernier bevel protractor
游标活动量角器

• superheater
• superheterodyne
• superheterodyne receiver
• superheterodyne spectrometer
• supericonoscope
• superimposed hologram
• superimposed image
• superimposed point sources
• superior mirage
• superisocon
• superlaser
• superlattice
• superlinear
• superluminescence
• superluminescent
• superluminescent diode
• supermalloy
• supermicroscopic
• supermode competition
• supermode generator
• super mode laser
• supermode technique
• super-orthiscon
• superperformance
• superpolishing