motion picture projector
电影放映机

• iron arc
• iron oxidfe
• iron sulfide film
• IR optical component
• IR phosphor
• IR picture
• irradiance
• irradiant
• irradiated gas
• irradiated surface
• irradiation
• irradiation bomb
• irradiator
• IR-radiometer
• irradome
• irrationa dispesion
• irrational
• IR recording equipment
• irreducible matricx
• irreflexive
• irregar array irrelevant image
• irreqularity
• IR response
• irreueible componet
• irreversibility