Optical Coupler
光耦合器
光电耦合器
光学耦接器
光耦器件
光耦器
光电隔离器
光耦
sucker rod string rod column
(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
2-D optical frequency-time coding
2-D optical orthogonal codes(OOC)
2D optical sensor array
2-D optical sensor array