单词	aviator service span
释义	aviator service span 飞行年限
随便看	crosspoint relay crosspoint relay matrix crosspoints cross-points cross point screwdriver with plastic handle cross point screwdriver with wooden handle crosspoint switch crosspoint switching matrix crosspoint switch matrix cross-point switch matrix crosspoint switch system cross point switch system cross polar component cross-polar component cross polar decoupling cross polar diagram crosspolar effect cross polarised antenna cross polarization cross-polarization cross-polarization characteristic cross polarization characteristics cross polarization component cross polarization diagram cross polarization discrimination