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