When querying the parameters of the unit, first select the unit in the "Unit Selection" of "System Parameters". Unit 1 is a mandatory unit, and the default is that it has been selected.
In querying the parameters of the unit, first in the "system parameters" of the "unit selection" to select the unit, Unit 1 is the required unit, the default has been selected on
When querying the unit parameters, first select the unit in "unit selection" of "system parameters". Unit 1 is the required unit, which is selected by default