vertical leveling mirror
垂直调平镜

• mean parallax
• mean solar day
• mean solar time
• mean spherical candle power
• mean spherical intensity
• mean spherical luminous intensity
• mean square
• mean-square deviation
• mean square error
• mean square value
• mean squrare displacement
• mean value
• measa stripe lawer
• meas structure
• measurability
• measurable
• measurand
• measuration
• measured value
• measurement
• measurement microscopes
• measurement of thermal conductivity by laser
• measurement range
• measurement standard
• measurement voltage divider