normal operating period

... ) normal operating period 正常工作期 ) normal operating period 正常操作周期 ) regular interval 正常周期[间隔] ...

... 正常营业费用 normal operating expenses 正常动作周期 normal operating period 正常营业周转期 normal operating cycle ...

正常运行期，无误运转周期，正常工作期间,e... ... ) normal operating period 正常工作期 ) normal operating period 正常操作周 …