工程术语与缩写(16)

工程术语与缩写

ublic Address System
播音
PAS
Public Addressing and Tunnel Acoustic Irradiation System
播音及隧道声控系统
PA
Public Telephone
公用电话
PUBT
Pulse Code modulation
脉码调变
PCMcm
Pulse Modulation
脉冲调变
PM
Push Button / Pull Box
按钮 / 拉线箱
PB
Push Button Station
按钮站
PBSTA
Parallel Point
供电电源点
PP
Raceway
电缆槽
Raceway
Radio
无线电
RAD
Radio Frequency
无线电频率
RF
Radio System
无线电系统
RA
Rail Expansion Joint
轨道伸缩缝
REJ
Rail Level
轨顶
RAL
Railway Maintenance Circuit
铁路维护电路
RMC
Railway Operation Circuit
铁路行车回路
ROC
Rain Tight
防雨
Receive
接收
RECV
Receiver Number of
受讯机附编号
R1 , R2
Receiver / Receive
接收器 / 接收
RX
Receptacle
插座
RECPT
Recessed
隐藏式
Rectifier
整流器
RECT
Reduced Voltage Starter
降压起动器
RV
Regulator
调整器
REG
Relay / Radius / Reversing
电驿 / 半径 / 反转
R
Remote Computer Terminal
远端电脑终端机
RCT
Remote Control
遥控
RCTL
Resistance Temperature Detector
热阻温度侦测器
RTD
Resistor
电阻器
RES
Revolutions Per Minute
每分钟转速
rpm
Rigid Steel Conduit
钢导线管
RSC
Sequence
序列 / 顺序
SEQ
Shield
遮蔽
SHLD
Short Circuit Capacity
短路容量
SCC
Short Time Delay
短延时
ST
Shunt
分路 / 并接
SH
Siding
支线
Signal to Noise Ratio
讯号杂音比
S / N
Signaling
号志
SG
Similar
近似
SIM
Single Pole double Throw
单极双投
SPDT
Single Pole Single Throw
单极双投
SPST
Solenoid
螺管 / 线圈
SOL
Spare
备用品
SP
Speaker
扬声器 / 喇叭
SPKR
Section Post Power Station
次变电站
SPP
Split Flap
叶片
SF
Split Flap Board
叶片板
SFB
Split Flap Controller
叶片控制器
SFC
Standard
标准
STD
Standby
备用
SB
Station
站
STA
Structural, Electrical & Mechanical Drawing
结构机电图
SEM
Substation
变电站
SS
Supervisory
监督
SUPV
Supervisory Control and Data Acquisition
电力遥控系统
SCADA
Surface Mounted
挂装
SM
Switch
开关
SW
Switch Board
开关盘
SWBD
Switch Gear
开关设备 / 配电盘
SWGR
Switcher
开关器
SWR
Symmetrical
对称
SYMMmm
Synchronize
同步化
SYNC
Synchronizing and Paralleling Module
同步及并联模组
SPM
Synchronizing Switch
同步开关
SS
Telecommunications
电信
TELECOM
Telecommunications Handhold
电信手孔
TMH
Telecommunications Manhole
电信人孔
TMMmm
Telephone
电话
TEL
Telephone Wayside Box
沿线电话箱
TWSB
Television
电视
TV
Television Monitor
电视监视器机
TM
Temperature
温度
TEMP
Temperature Control Valve
温度控制阀
TCV
Terminal Board
端子板
TB
Term
inal Box
端子箱
TBX
Time Delay Closing / Telephone Distribution Cabinet
延时闭路 / 电话配线箱
TDC
Time Delay Opening
延时开路
TDO
Time Delay Relay
延时

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