短語詞組短語variable directional coupler 可變定向耦臺器coaxial variable direction coupler 同軸可變定向耦合器variable reflectivity coupler 變反射率耦合鏡variable e coupler 可變耦合器variable output coupler 可變輸出耦合器variable speed coupler reduction box 調(diào)速型偶合器減速箱variable coupler variocoupler 可變耦合器variable -iris waveguide coupler 可變膜片波導(dǎo)耦合器 返回 variable coupler