varifocal Moire zone plate
可变焦距莫阿带片

• axis of sight
• axis of sighting
• axis of symmetry
• axis of visual cone
• axisymmetric
• axle
• axle mirror
• axle neck
• axle pin
• axometer
• axonometrical drawing
• axonometry
• azeotropism
• azimuth
• azimuthal
• azimuthal angle
• azimuthal mode number
• azimuthal quantum number
• azimuthal resolution
• azimuth and elevation scope
• azimuth angle
• azimuth axis
• azimuth coverage
• azimuth finder
• azimuth indicating goniometer