求翻译：历史数据管理定期保存数据，对保存的历史数据点可设定存储周期。历史数据库存储具有定时存储数据和异常状态下存储历史数据的功能。是什么意思？

Historical data management on a regular basis to save data, save the historical data points can be set storage period. Historical database to store data with time and abnormal state storage storage historical data.

Historical data management regularly Save Data, the preservation of historical data points can be set up storage cycle. historical database store has a regular storage of data storage and abnormal state function of historical data.

The history data management regular preservation data, may establish the memory cycle to the preserved historical data point.The historical database memory has under the fixed time stored datum and the abnormal state saves the historical data the function.

Historical data management regularly save data, historical data points can be set to save storage period. Historical database storage with data and a scheduled save exception State functions for storing historical data.

Historical data management on a regular basis to save data, save the historical data points can be set storage period. Historical database to store data with time and abnormal state storage storage historical data.