rectangular guideway
长方形形导轨，矩形导轨

• acousto-optic scanner
• Acousto-Optic Shutters
• Acousto Photorefractive Effect
• acousto-photorefractive effect
• AC-powered magnet
• AC-powered photostimulator
• AC-powered slitlamp biomicroscope
• acquiring
• acquisition
• acquisition equipment
• actice illumination
• Actinic
• actinic absorption
• actinic achromatism
• Actinic Focus
• Actinic Glass
• actinicity
• Actinic Radiation
• actinides
• Actinism
• actinium
• actinochemistry
• actinography
• actinology
• Actinometer