fix:修正语法错误

msg_definitions/VKFly.xml

@@ -1481,8 +1481,8 @@
        <field type="int16_t" name="bat_current" units="dA">Battery current.</field>
        <field type="uint16_t" name="cell_max_volt" units="mV">Cell max voltage.</field>
        <field type="uint16_t" name="cell_min_volt" units="mV">Cell min voltage.</field>
-       <field type="int8_t" name="bat_maxtemp" unit="degC">Battery Max_temperature.</field>
-       <field type="int8_t" name="bat_mintemp" unit="degC">Battery Min_temperature.</field>
+       <field type="int8_t" name="bat_maxtemp" units="degC">Battery Max_temperature.</field>
+       <field type="int8_t" name="bat_mintemp" units="degC">Battery Min_temperature.</field>
        <field type="uint8_t" name="contactor_sta">Contactor status.</field>
        <field type="uint8_t" name="soh_value" units="%">Battery SOH value.</field>
        <field type="uint8_t" name="max_volt_id">Cell max voltage id.</field>
@@ -1497,7 +1497,7 @@
        <field type="uint16_t" name="dc28_volt" units="dV">High volt-box voltage.</field>
        <field type="uint8_t" name="dc28_current" units="A">High volt-box current.</field>
        <field type="uint16_t" name="hvb_voltage" units="dV">High volt-box voltage.</field>
-       <field type="int8_t" name="hvb_temp" unit="degC">High volt-box temperature.</field>
+       <field type="int8_t" name="hvb_temp" units="degC">High volt-box temperature.</field>
        <field type="uint8_t" name="hvb_status">High volt-box status.</field>
     </message>
   </messages>