| Subject | English | Chinese |
| mil., air.def. | airborne frequency multiplexing system | 机载频率多路系统 |
| avia. | airborne frequency multiplexing system | 机载频率多路传输系统 |
| IT | audio frequency pulse system of inductive field | 感应场音频脉冲波系统 |
| tech. | audio-frequency pointing system | 音频照准系统 |
| commun., railw. | automatic block system with jointless shift frequency | 无绝缘移频自动闭塞系统 |
| shipb. | automatic frequency control system pull in bandwidth | 调频系统自动捕捉带宽 |
| shipb. | automatic frequency control system pull in bandwidth | 自动调频系统的捕捉带宽 |
| mil., air.def. | automatic frequency control system pull-in bandwidth | 自频调系统的捕捉带宽 |
| shipb. | automatic frequency control system tracking bandwidth | 跟踪带宽的频率自控系统 |
| mil., air.def. | automatic frequency control system tracking bandwidth | 自频调系统的跟踪带宽 |
| shipb. | automatic frequency control system tracking bandwidth | 自动调频系统的跟踪带宽 |
| geophys. | automatic frequency modulation eliminating system | 自动调频消除系统 |
| agric. | automatic regulation of frequency in electric power system | 电力系统频率的自动调节 |
| tech. | baseband frequency repeating system | 基频接转制 |
| tech. | baseband frequency repeating system | 基频中继系统 |
| el. | cable modem termination system downstream radio frequency interface | 线缆调制解调器端接系统下行射频接口 |
| el. | cable modem termination system upstream radio frequency interface | 线缆调制解调器端接系统上行射频接口 |
| space | central time frequency system | 中心时频系统 |
| mil., air.def. | closed-loop system frequency characteristics | 闭环系统频率特性 |
| telecom. | codirection frequency system | 同向频率系统 |
| telecom. | combination pulse and frequency-coding system | 脉冲和频率组合编码制 |
| el. | combined reference frequency system | 组合参考频率系统 |
| avia. | constant speed constant frequency power system | 恒速恒频电源系统 |
| avia. | constant speed-frequency AC power system | 恒速恒频交流电源系统 |
| el. | constant-speed constant-frequency system | 恒速恒频装置 |
| geophys. | cross hole audio-frequency rock testing system | 井间音频岩石试验系统 |
| el. | digital feedback frequency modulation system | 数字反馈调频系统 |
| tech. | direct frequency modulation system | 直接调频制 |
| tech. | Doppler system with double frequency | 双频多普勒系统 |
| tech. | Doppler system with single frequency | 单频多普勒系统 |
| mil., air.def. | double frequency both sideband transmission system | 双频双边带通信传输系统 |
| tech. | double frequency sequence signaling system | 双频顺序信号制 |
| mil., air.def. | double frequency sequence signalling system | 双频序列信号发射系统 |
| tech. | double frequency sequence signalling system | 双频顺序信号制 |
| el. | effect of system frequency | 电力系统频率作用 |
| tech. | electronic power frequency control system | 电子电源频率调节装置 |
| space | extremely low frequency communication system | 极低频通信系统 |
| el. | frequency agility radar modification to existing radar system | 由现有雷达系统改装的频率捷变雷达 |
| el. | frequency analysis of system program | 系统频率分析程序 |
| IT | frequency and amplitude system | 频幅分发系统 |
| earth.sc. | frequency and time systems | 频率和时间系统 |
| space | frequency and timing system | 时统系统 |
| space | frequency and timing system | 频率和定时系统 |
| tech. | frequency coding system | 频率编码制 |
| space | frequency control system | 频率控制系统 |
| IT | frequency division multiple system | 分频多路系统 |
| tech. | frequency division multiplex system | 分频多路传输方式 |
| space | frequency division multiplex telemetry system | 频分多路传输遥测系统 |
| el. | frequency division multiplexing system | 频分复用系统 |
| mil., air.def. | frequency division multiplexing telemetry system | 频分多路遥测系统 |
| mil., air.def. | frequency division switching system | 频分交换开关系统 |
| mil., air.def. | frequency division system | 频率分割制 |
| tech. | frequency division system | 分频制 |
| nautic. | frequency division system | 频率分隔制 |
| oil | frequency domain data processing system | 频率域数据处理系统 |
| earth.sc. | frequency domain electromagnetic system | 频率域电磁系统 |
| tech. | frequency interleaving system | 频率交错制 |
| space | frequency management system | 频率管理系统 |
| mil., air.def. | frequency modulation range measuring system | 调频测距系统 |
| math. | frequency modulation system | 周频制 |
| met. | frequency modulation system | 调频系统 |
| tech. | frequency modulation system | 调频制 |
| space | frequency monitoring system | 频率监控系统 |
| el. | frequency monitoring system | 频率监测系统 |
| tech. | frequency programming system | 频率程序系统 |
| shipb. | frequency radio navigation system | 无线电频率导航系统 |
| shipb. | frequency radio navigation system | 频率无线电导航系统 |
| mil., air.def. | frequency resource record system | 频率资源记录系统 |
| agric. | frequency response of optical system | 光学系统的频率响应 |
| el. | frequency selective receiver system | 选频接收机系统 |
| avia. | frequency selective receiver system | 频率选择接收机系统 |
| tech. | frequency selective system | 选频系统 |
| mil., air.def. | frequency shift communication system | 频移通信系统 |
| el. | frequency shift communications system | 移频通信系统 |
| radio | frequency shift system | 移频制电极 |
| mil., air.def. | frequency shift system | 频移制 |
| tech. | frequency shift system | 频移系统 |
| tech. | frequency shift system | 移频系统 |
| space | frequency synthesizer system | 频综系统 |
| mil., air.def. | frequency system | 频率系统 |
| mil., air.def. | frequency transfer system | 频率转移系统 |
| avia. | frequency-array radar system | 频率阵列雷达系统 |
| telecom. | frequency-coding system | 频率编码制 |
| space | frequency-division instruction transmission system | 频分指令传输系统 |
| el. | frequency-division multiplex FDM communication system | 分频多路通信系统 |
| space | frequency-division system | 频分制 |
| space | frequency-division telemetering system | 频分制遥测系统 |
| tech. | frequency-modulated system | 调频系统 |
| tech. | frequency-modulated system | 频率调制系统 |
| tech. | frequency-modulated telecontrol system generator | 调频遥控系统发生器 |
| geophys. | frequency-modulation-phase-modulated telemetering system | 调频、调相遥测系统 |
| IT | high frequency adaptive antenna receiving system | 高频自适应天线接收系统 |
| space | high frequency antenna system | 高频天线系统 |
| avia. | high frequency communications processor system | 高频通信处理器系统 |
| avia. | high frequency data network system | 高频数据网络系统 |
| el. | high frequency radio system | 高频无线电系统 |
| avia. | high frequency simulation system | 高频模拟系统 |
| space | high frequency sounder system | 高频探测器系统 |
| IT | high frequency switching system | 高频变换系统 |
| el. | high frequency switching system | 高频交换系统 |
| avia. | high frequency system | 高频系统 |
| el. | high frequency wire broadcasting system | 高频有线广播系统 |
| tech. | high-frequency wired distribution system | 高频有线分配系统 |
| avia. | hydraulic system frequency response | 液压系统频率响应 |
| el. | improved high frequency radio system | 改进型高频无线电系统 |
| el. | improved SOF high-frequency manpack radio system | 改进型特种作战部队便携式高频无线通信系统 |
| tech. | impulse frequency system | 脉冲频率制 |
| space | independent frequency-isolation system | 独立频率隔离系统 |
| tech. | industrial frequency alternate current electric traction system | 工频交流电力牵引制 |
| tech. | industrial frequency alternate current electrical traction system | 工频交流电力牵引制 |
| railw. | industrial frequency single-phase AC electric traction system | 工频单相交流电力牵引制 |
| el. | integrated high frequency antenna system | 集成高频天线系统 |
| mil., air.def. | integrated high frequency antenna system | 综合高频天线系统 |
| shipb. | intermediate frequency power system | 中频电力系统 |
| el. | jamming guarded radio VHF frequency-hopping radio system | 防干扰电台甚高频跳频无线电系统 |
| tech. | laser frequency stabilizing system | 激光稳频系统 |
| avia. | low frequency automatic radio navigation system | 低频自动无线电导航系统 |
| el. | low frequency navigation system | 低频导航系统 |
| space | low frequency signal generation system | 低频信号发生系统 |
| avia. | low frequency wave system | 低频波系统 |
| tech. | low-frequency navigation system | 低频导航系统 |
| tech. | low-frequency navigational system | 低频导航系统 |
| shipb. | low-frequency radio navigation system | 低频无线电导航系统 |
| space | low-frequency wave system | 低频波系统 |
| space | medium and high frequency direction-finding system | 中频与高频无线电测向系统 |
| shipb. | medium-frequency radio navigation system | 中频无线电导航系统 |
| math. | modified frequency modulation system | 改进调频制 |
| mil., air.def. | modified frequency modulation system | 调频修正系统 |
| telecom. | multi-frequency signaling system | 多频信令系统 |
| telecom. | multi-frequency signaling system | 多频信令制 |
| space | multi-frequency signalling system | 多频信号系统 |
| IT | multi-frequency system | 多频系统 |
| avia. | multifunction integrated radio frequency system | 多功能综合射频系统 |
| el. | NATO UHF frequency assignment system | 北约超高频频率分配系统 |
| tech. | one-frequency selection system | 单频选择制 |
| mil., air.def. | open-loop system frequency characteristics | 开环系统频率特性 |
| el. | planning aid for radio frequency acquisition system | 射频搜索系统设计辅助设备 |
| el. | prevailing system frequency | 主要的系统频率 |
| space | pulse frequency modulation control system | 脉冲调频控制系统 |
| tech. | quadruple-frequency system | 四频制 |
| logist. | radio frequency identification system | 射频识别系统 |
| avia. | radio frequency signal management system | 射频信号管理系统 |
| avia. | radio frequency simulation system | 射频模拟系统 |
| el. | radio frequency surveillance/electronic countermeasures system | 射频监视/电子对抗系统 |
| el. | radio frequency sub system | 射频子系统 |
| el. | radio frequency system simulator | 射频系统模拟器 |
| el. | radio frequency system test facility | 射频系统测试设备 |
| space | radio frequency-micro electro mechanical systems | 射频微机电系统 |
| el. | radio transmission frequency measuring system | 无线传输频率测量系统 |
| tech. | radio transmission frequency measuring system | 无线电发射频率测量系统 |
| tech. | radio-frequency control system | 射频控制系统 |
| tech. | radio-frequency deflector system | 射频偏转器系统 |
| el. | radio-frequency design system | 射频设计系统 |
| tech. | radio-frequency distribution system | 分配系统 |
| el. | radio-frequency metrology system | 射频计量系统 |
| tech. | radio-frequency repeating system | 射频接转制 |
| tech. | radio-frequency system | 射频系统 |
| space | reference frequency system | 频率基准系统 |
| el. | sideband intermediate frequency communications system | 边带中频通信系统 |
| railw. | single phase industrial frequency AC electric traction system | 单相工频交流电力牵引制 |
| railw. | single-phase industrial frequency AC system | 单相工频交流制 |
| railw. | single-phase low frequency AC system | 单相低频交流制 |
| el. | SOF high-frequency manpack radio system | 特种作战部队便携式高频无线通信系统 |
| el. | sonic frequency system | 音频系统 |
| el. | sonic frequency system | 声频系统 |
| space | standard frequency system | 标准频率系统 |
| tech. | standard frequency system | 标准频率制 |
| mil., air.def. | survivable low frequency communications system | 抗毁低频通信系统 |
| el. | survivable low frequency communications system | 抗毁［强生存能力］低频通信系统 |
| avia. | survivable low frequency communications system | 长期型低频通信系统 |
| earth.sc. | sweep frequency radiometer system | 扫描频率辐射仪系统 |
| el. | swept frequency radiometer system | 扫频辐射计系统 |
| reliabil. | system average interruption frequency index | 系统平均停电次数 |
| compr. | system frequency | 电网频率 |
| avia. | system frequency | 系统频率 |
| tech. | system frequency excursion | 系统频率偏移 |
| busin. | system of frequency curve | 频数曲线体系 |
| avia. | tactical frequency management system | 战术频率管理系统 |
| space | telemetering system of frequency division type | 频分制遥测系统 |
| auto. | time frequency collision avoidance system | 时间/频率防撞系统 |
| el. | time/frequency collision avoidance system | 时间/频率飞机防撞系统 |
| mil., air.def. | time/frequency collision avoidance system | 时频防撞系统 |
| oil | time-frequency collision avoidance system | 时-频避撞系统 |
| navig. | time/frequency collision avoidance system | 时/频避撞系统 |
| tech. | time-frequency collision avoidance system | 时间频率避碰系统 |
| nucl.pow. | turbine power and frequency regulating system | 汽轮机功率和频率调节系统 |
| oil | two frequency system | 二频制 |
| tech. | two-fold frequency system | 双频制 |
| commun., railw. | two-frequency system | 二频制 |
| avia. | ultra high frequency Doppler system | 超高频多普勒系统 |
| avia. | ultra high frequency Doppler velocity and position system | 超高频多普勒速度与位置系统 |
| space | ultra high frequency satellite communication system | 超高频卫星通信系统 |
| tech. | ultra-high frequency mini-trunking radio system | 超高频小型中继无线通信系统 |
| el. | ultra-high frequency rocket command system | 超高频火箭指令系统 |
| earth.sc. | ultra-high-frequency Doppler System | 超高频多普勒系统 |
| avia. | Utra High Frequency Doppler Velocity and Position System | 超高频多普勒速度和位置测量系统 |
| geophys. | variable acoustic low frequency system | 可变声波低频系统 |
| avia. | variable frequency AC power system | 变频交流电源系统 |
| avia. | variable frequency power system | 变频电源系统 |
| space | variable speed constant frequency power system | 变速恒频发电系统 |
| avia. | variable speed constant frequency power system | 变速恒频电源系统 |
| el. | very high frequency communications system | 甚高频通信系统 |
| tech. | very high frequency direction finder system | 甚高频测向系统 |
| tech. | very high frequency navigation system | 甚高频导航系统 |
| IT | very low frequency band radiated field system | 甚低频辐射场系统 (VLF system) |
| earth.sc. | very low frequency band radiated field system | 甚低频带辐射场系统 |
| shipb. | very-high-frequency radio navigation system | 甚高频无线电导航系统 |
| shipb. | very-low-frequency radio navigation system | 甚低频无线电导航系统 |
| el. | voice frequency control system | 音频控制系统 |
| avia. | voice frequency control system | 特低频控制系统 |
| el. | voice frequency signaling system | 音频信令系统 |
| IT | voice-frequency telegraph system | 音频电话系统 |
| chem. | voltage to frequency conversion system | 电压频率转换系统 |
| chem. | voltate-to-frequency conversion system | 电压频率转换系统 |
| telecom. | wide-deviation frequency modulation system | 宽频偏调频系统 |