recording equipment
记录设备(录声设备和录影设备)

• overall magnification
• overall size
• overall system gain
• overannnealing
• overarm
• overarm support
• overbalance
• overbunching
• overburden
• overcast
• overcharge
• overcoat
• overcoating
• overcompensation
• overcooling
• over correction
• overcurrent
• overdamping
• overdevelopment
• overdischarge
• overdrive gear
• overexcitation
• overexpanision
• overexposure
• overflow