maintain the same level

Tanks linked by an equalizing conduit at the lower end to maintain the same level of fluid within each of the tanks
Isoperformance: Trading off Selection, Training, and Equipment Variations to Maintain the same Level of Systems Performance
It Takes a Talented Wrestler to Maintain the Same Level of Success While Moving Up a Weight Class. to Move Up Two Weight Classes and...
Human fibroblasts maintain the viability and augment the functional response of human neutrophils in culture
Compounding of discriminative stimuli from the same and different sensory modalities which maintain responding on separate levers
The Bicyclist's Paradox
Lubricants for HFC Refrigerant Compressors.
Low ATP level is sufficient to maintain the uncommitted state of multipotent mesenchymal stem cells.
OPEC Members Maintain High Production Level
Use of Hydroponics to Maintain Quality of Recirculated Water in a Fish Culture System