digital process control
数字程度控制

• Laue phtograph
• Laue point
• Laue's conditions
• Laue's equation
• Laue spot
• Laue symmetry
• launch
• Launch angle
• launcher
• launch escape system
• launching charcteristic
• Launching fiber
• Launch numerical aperture
• Laurent half shade plate
• Laurent polarimeter
• Laval nozzle
• lavevorotaion
• law
• law of Beer
• law of Brewster
• law of combination of errors
• law of extreme path
• law of photoelectricity
• law of reciprocity
• law of reflection