The phrase "maintain normal operation" is correct and usable in written English.
You could use this phrase when you want to emphasize staying on course or continuing to do something in the same way it's been done in the past. For example: "Even during the pandemic, we must maintain normal operation as much as possible."
Finally, the output single-phase inverters of the PET still maintain normal operation without being affected by the input oscillation.
Urban rail transit system is difficult to maintain normal operation, so passengers shall be transported through other traffic modes outside the station.
The advanced working fluid was also tested at larger angles and was able to maintain normal operation due to the additional capillarity of the fluid deposits.
Sufficient generator capacity should also be available to maintain normal operation of the animal facility in the event of power outage or breakdown of mechanical systems.
To maintain normal operation of the school, the village now regulates the hours that people can use the pump.
In order to maintain normal operation of the school, the village must regulate the hours that people can use the pump.
The company plans to maintain normal operations at two units, however: CF Air Freight an air freight operation that offers Internet-based services, and Canadian Freightways, a Canadian subsidiary.
Also imperative was the need for all NSLIJHS laboratories to maintain normal operations.
Results show that the LQR controller is highly efficient in maintaining normal operation of the reactor.
By the same token, the power consumption of the station services, which is regarded as a basic index for maintaining normal operation of the wind farm, can be viewed as a parameter of the stability aspect.
But we must cooperatively find ways to further reduce our costs while maintaining normal operations.
