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旋转号盘电话机 相关科技名词
- 电缆套管cable sleeve
- 手孔hand hole
- 电缆标石cable marking stake
- 电缆充气维护设备cable gas-feeding equipment
- 炭精避雷器carbon arrester
- 充气避雷器gas filled arrester
- 陶瓷避雷器ceramic arrester
- 保安器protector
- 纵向扼流线圈longitudinal choke coil
- 排流线圈drainage coil
- 避雷线lightning conductor
- 架空地线aerial earth wire
- 杆上工作台pole balcony
- 线障脉冲测试器pulse echo fault locator
- 卤素查漏仪halogen leak detector
- 超声波查漏仪ultrasonic leak detector
- 电缆障碍探测器cable fault detector
- 气敏查漏仪gas-sensitive leak detector
- 兆欧表megger
- 直流电桥direct current bridge
- 阻抗电桥impedance bridge
- 导纳电桥admittance bridge
- 环路电阻loop resistance
- 绝缘电阻insulation resistance
- 不平衡电阻unbalanced resistance
- 特性阻抗characteristic impedance
- 垂度sag
- 角深pull
- 交叉制式transposition system
- 基本交叉间隔fundamental transposition interval
- 交叉偏差deviation from transposition inter-val
- 交叉指数transposition index
- 交叉区transposition section
- 集总加感lumped loading
- 加感节距loading coil spacing
- 分级保护cascade protection
- 参考当量reference equivalent
- 长途通信网toll communication network
- 通信枢纽communication center
- 局通信枢纽communication center of railway administration