Passive jam无源干扰passiveadj.被动的；消极的n.被动性passive social group被动的社会群体passive transference被动转运passive immunization被动免疫passive power filter无源滤波器Passive urbanization被动城市化passive reinforcement被动加固passive homosexuality被动性同性恋passive relay station无源中继站passive range Doppler测定导弹飞行弹道的多普勒系统passive neutron assay固有中子分析