electronic level
(1)电子水准仪
(2)电子能级

• Interferometry
• interferoscope
• inter-frame redundancy
• interfringe
• intergalactic space
• intergating gyroscope
• inter-image effect
• interior focusing
• interior screw
• interior sub-multiple angles
• interiror focusing telescope
• interlaced scanning
• interlayer
• interlayer effect
• interleave scanning
• interlock
• interlocking device
• intermediary image
• intermediate axle
• Intermediate fequency
• intermediate frequency
• Intermediate frequency transformer
• intermediate gear
• Intermediate herschek effect
• intermediate image