The phrase "as the main control" is correct and usable in written English.
It can be used when referring to a primary mechanism or method of regulation in a system or process.
Example: "The software operates as the main control for managing the network's performance and security."
Alternatives: "as the primary controller" or "as the central regulator".
On the other hand, we adopted the compound control action, two-position set point action, the time-delay control and the conditional action of free cooling as the main control operations for the controller.
At the beginning of the twentieth century, quinine was seen as the main control tool.
Hydrogeological settings significantly influenced groundwater nitrate occurrence and suggested denitrification as the main control.
The tailings flowrate controlled by a variable speed pump was used as the main control variable.
With FPGA as the main control module, the peripheral circuit can work together harmoniously.
The RFPID functions as the main control unit to drive the system to desired goals.
Firstly, its basic behaviour in the elastic range is studied checking for deflection as the main controlling design factor.
The % CO2 removal was chosen as a typical performance indicator and the liquid to gas flow ratio was chosen as the main controlling variable of the process.
The % CO2 removal was chosen as a typical performance indicator and the liquid to gas flow ratio as the main controlling variable of the process.
The CO2 recovery was chosen as a typical performance indicator and the liquid (0.25 M aqueous DEA solution) to gas flow ratio as the main controlling variable of the process.
Multivariate statistical techniques, cluster and principal component analysis were applied to the data on groundwater quality of Suri I and II Blocks of Birbhum District, West Bengal, India, to extract principal factors corresponding to the different sources of variation in the hydrochemistry as well as the main controls on the hydrochemistry.
