Franz-keldysh effect
夫兰兹-凯耳什效应

• night-time vision device
• night viewing packet scope
• night vision
• night vision equipment
• night-vision objective
• night-vision sight
• night-vision sytsem
• night-vision viewer
• night window
• nigh-vison googles
• nigrescent
• nil
• niobate
• niobium
• niobium-base superconductiing material
• Nipkow disk
• nippers
• nipple
• nit
• nitralloy
• nitrate
• nitrate film
• nitric
• nitric acid
• nitric oxide