Update PublicAssmeblyBLL.cs

wxr

2023-07-30 d76b0e40e5bb127fd33aa1f7842447a1df0628d5

 HDL_ON/Entity/Function/Sensor.cs

@@ -159,7 +159,7 @@
            switch (function.spk)
            {
                case SPK.SensorPm25:
                    unit = "ug/m²";
                    unit = "ug/m³";
                    break;
                case SPK.SensorTemperature:
                    unit = "°C";