Lummer-Brodhum phtometer
陆末-布洛洪光度计

• screen illumination ration
• screening electron
• screening method
• screening rate
• screening test
• screen number
• screen persistence
• screw
• screw axis
• screw cap
• screw drive
• screw-driver
• screw ga(u)ge
• screw gear
• screw-in filter cell
• screw micrometer
• screw-on surface
• screw pitch
• screw plug ga(u)ge
• screw ring ga(u)ge
• screw testing interferometer
• screw thread
• screw thread gage
• screw thread micrometer
• screw-type lens mount