subcarrier FM-CW laser ranging
连续波副载波调频激光测距

• variable phase plate
• variable power
• variable-power afocal
• variable-power eyepiece
• variable-power lens
• variable-power system
• variable speed
• variable speed chopper
• variable speed scanning
• variable ultrafast photographic shutter
• variable voltage
• variable wave-length phase microscope
• variance
• variation
• variational principle
• variation of cavity length
• variation of tolerance
• variator
• varichrome film
• varicolo[u]red
• variety
• vari-focal lens
• varifocal lens binocular
• varifocal Moire zone plate
• varifocal objective