Because the process state is stored in a database, the process engine can also recover running processes after a server shutdown, due to hardware failure or regular maintenance.
因为流程状态存储在数据库，所以流程引擎在服务器关闭之后可以恢复运行流程。服务的关闭是由于硬件故障或者正常维护。
Consider a repairable system in series in which, for some reasons, individual units cannot get repaired in time after failure occurs, thereby creating a period of delayed maintenance.
考虑可修的串联系统，其单元产品在出现故障时，由于种种原因，故障不能得到及时维修，形成了一段保障延误时间。
The direct cause of this bearing 'failure was its improper assembly caused by improper maintenance procedure, and the root cause was too small internal radial clearance after mounting.
而非驱动端轴承损坏的直接原因是由于检修程序不完善使轴承在大修中安装不当所造成的，其根本原因则是轴承安装后游隙过小。
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