正常操作时间  up-time

时间-时间-时间交换网络  Time-Time-Time Switching Network TTT

真正操作时间  real time operation

热响应时间(时间常数)  time constant

从开工到正常操作的时间  initial come-up time

正比正比例  direct ratio

正常XRF操作  normal XRF operations

正常操作  normal operation; regular service; error-free operation; AG-2

正常操作程序  normal procedure

正常操作电弧  normal op-eration arc

正常操作期  error-free running period

正常操作顺序  normal sequence of operation

正常操作条件  normal operating condition; normal operating conditions

正常操作位置  normal operational position

正常操作压力  routine operating pressure

正常操作周期  normal operating period

正常操作状态  normal operating state

正常时间  leveled element time; normal task; normal time

标准操作时间  standard operating time