mercury-rare gas laser
水银-稀有气体混合蒸气激光器

• Baume scale
• bauxite
• bay
• bayonet base
• bayonet mount
• bayonet ring
• beacon
• beaconage
• beaconimagery
• beacon lamp
• beacon light beam
• beacons
• bead
• beaded screen
• beading
• bead phototransistor
• beam
• beam-addressable technology
• beam angle
• beam angle of scattering
• beam antenna
• beam aperture
• beam attenuator
• beam axis
• beam balance ratio