active device
有源器件
主动装置
有源组件
有源元件
有源装置
有效装置
主动元件
active optical fiber coupler
Active Optical Fiber Loop
Active Optical Network AON
Mix optical active substance
bistable optical device
diffractive optical device
2nd-Order Active Filter
302-A special active carbon for removing red-lustre
3-phase 4-wire active power filter