穩壓器的性能參數 performance parameter of regulator
穩壓係數 regulation factor
握手 handshake
無變壓器電源 non-transformer power supply
無縫越區切換 seamless handover
無繩電話 cordless telephone
無繩電話係統 cordless telephone system
無繩電話站 telepoint
無繩局域網 cordless local area network (CLAN)
無條件呼叫轉移 call forward unconditional
無線傳聲器 wireless microphone
無線電 radio
無線電波 radio wave, Hertzian waves
無線電波傳播 radio wave propagation
無線電地平線 radio horizon
無線電發射機 radio transmitter
無線電幹擾 radio jamming
無線電環境 radio environment
無線電寂靜 radio silence
無線電接力通信 radio relay communication
無線電接收機 radio receiver
無線電台（站） radio station
無線電通信 radiocommunication
無線電通信業務 radiocommunication service
無線電通信中的發射 emission (in radiocommunition)
無線分係統指定越區切換 radio sub-system directed handover
無線分係統準則 radio sun-system criteria
無線革命 wireless revolution
無線接力係統 radio-relay system
無線鏈路協議 radio link protocol (RLP)
無線通信業務 radio communication service
無線線路 radiolink
無線信道群 radio channel group (RCG)
無線尋呼1號碼 radio-paging code No. 1
無線尋呼係統 radio paging system
無線助聽係統 radio hearing aid system
無線專用交換機 wireless private branch exchanger (WPBX)
無線本地環路 radio local loops
無線電話交換機 wireless telephone exchanger (WTX)
無用發射 unwanted emission
無用信號 unwanted signal, undesired signal
無源網絡 passive network
無源遙感器 passive sensor
無源元件 passive component
無源中繼站 passive relay station
無中心多信道選址係統 multi-channel access system without central control
五音順序製 five tone sequential system
物理層 physical layer
物理接口 physical interface
物理接口規範 physical interface specification
物理線路 physical circuit
誤比特率 bit error ratio
誤差 error
誤差概率 word error probability
誤差信號 error signal
誤碼 error code
誤碼擴散 error spread
誤碼率（誤碼比） error rate (error ratio)
誤碼增殖 error multiplication
誤碼增殖因子 error multiplication factor

X
吸收鉗 absorbing clamp
係流氣球通信 captive balloon communication
係統編碼容量 system coding capacity
係統變化控製 system coding control
係統方法 system approach
係統功能 system function
係統管理終端 system manager terminal
係統規範 system specification
係統環境 environment of system
係統恢複時間 system recovery time
係統集成 system integration
係統間幹擾 inter-system interference
係統結構 system architecture
係統可行性論證 system feasibility study
係統控製器 central controller
係統論 system theory
係統模擬 system simulation
係統模型 system model
係統內幹擾 intra-system interference
係統全呼 system wide call
係統設計評審 system design review
係統試驗 system testing
係統損耗 system loss
係統網絡結構 system network architecture
係統優化 system optimization
係統總工作時間 system overall operate time
隙外信令 out-slot signalling
下變頻器 down-converter
下午效應 afternoon effect
下行鏈路 downlink
先來先服務 first-come first service
顯示技術 display technology
限幅電路 amplitude limiting circuit
限幅靈敏度 amplitude limiting sensitivity
限幅中頻放大器 IF limiting amplifier
限流保護 current-limiting protection
線路 feeder
線路故障 line fault
線路集中器 line concentrator
線路碼 line code