o type backward wave tube o 型返波管o type tube o 型超高频电子管oat 氧化物对准晶体管工艺object distance 目标距离object identification 目标识别objective 物镜objective turret 镜头转轮oblique anode 倾斜阳极oblique deposition 倾斜淀积oblique evaporation 斜射蒸镀observability 可观测性occlusion 吸气酌occupancy 占有occupation density 占有密度occupid state 填充状态octode 八极管ocular lens 目镜odd harmonic 奇次谐波ode 定向腐蚀剂oeic 光电子集成电路oerstedmeter 奥斯特计off chip amplifier 片外放大器off chip connection 芯片外连接off chip resistor 片外电阻off condition 截止状态off contact 触点断开off hook 摘机off hook circuit 闭合电路off line control 脱机控制off line mode 脱机方式off line storage 脱机存储器off load voltage 开路电压off position 开始状态off resistance 关态电阻off state 断开状态off the shelf integrated circuit 现用集成电路off time 关机时间off transistor 截止晶体管office busy hour 电话局忙时office call 局内呼叫office communication 局内通信offset 偏置;偏置offset carrier 偏离载波offset gate fet 补偿栅场效应晶体管offset subcarrier system 副载波偏置系统og 或门ohm 欧ohmammeter 欧安表ohmic bridge 电阻电桥ohmic contact 欧姆接触ohmic junction 欧姆接合ohmic losses 欧姆损耗ohmic metallization 欧姆接触金属化ohmic resistance 欧姆电阻