[Message]
How to perform maintenance tasks offline
App端如何在线执行保养任务（视频）
App端如何验收或退回保养单（单个或批量操作）（文档）
Execution of Maintenance Tasks on the App Platform
App端如何离线执行保养任务（视频）
App端如何执行不定期保养项（文档）
Addition of Irregular Maintenance Tasks on the App platform
How to add maintenance tasks(regular, irregular)
App端如何执行定期保养项（文档）
