style：厂区结构-关联设备/关联采集设备-下拉框允许情况选项

src/views/mes/organization/OrganizationForm.vue

@@ -97,7 +97,7 @@
           default-expand-all
           placeholder="请选择机台"
         /> -->
-        <el-select v-model="formData.machineId" :placeholder="t('FactoryModeling.FactoryStructure.dialogMachinePlaceholder')">
+        <el-select v-model="formData.machineId" :placeholder="t('FactoryModeling.FactoryStructure.dialogMachinePlaceholder')" clearable>
           <el-option
             v-for="item in deviceList"
             :key="item.id"
@@ -107,7 +107,7 @@
         </el-select>
       </el-form-item>
           <el-form-item :label="t('EquipmentManagement.EquipmentLedger.dvName')" prop="dvId" v-if="formData.orgClass == 'workplace'">
-        <el-select v-model="formData.dvId" filterable :placeholder="t('EquipmentManagement.EquipmentLedger.dvId')">
+        <el-select v-model="formData.dvId" filterable :placeholder="t('EquipmentManagement.EquipmentLedger.dvId')" clearable>
           <el-option
             v-for="item in dvList"
             :key="item.id"