Aerosol Optical Thickness
aerosol optical thickness and extinition coefficient
atmospheric optical thickness
Cloud optical thickness
Infinity Optical Thickness
Inversion optical thickness
ratio of erosion thickness and stratigraphic thickness
respiration monitoring temperature monitoring
(OCR) Optical Character Recognition Equipment(OCR)
(OTDR) Optical Time-Domain Reflectometers(OTDR)
1 550 nm optical fiber transmission system
1 550 nm optical transmission
1 550nm Optical Transmission
1550 nm Optical network
157nm optical lithography
157um optical lithography