Tangent screen
(campimeter)切线幕(视野计)

• photoelectronic tansducer
• photoelectron spectroscopy
• photoelectrophoretic camera
• photoeleectric electron multiplier tube
• photoeleectric polarimeter
• photoelement
• photo-elimination
• photoemf
• photoemission
• photoemission current
• photoemissive cell
• photoemissive detector
• photoemissive device
• photoemissive element
• photoemissive surface
• photoemissivity
• photoemitter
• photoemulsion
• photoenergetics
• photo energy
• photoengraving
• photoetching
• photoexcitation
• photoexcited
• photoexcited nucleus