If your database is being changed more frequently, it is good to have some kind of automatic mechanism to schedule backups at regular intervals.
如果要更频繁地更改数据库，那么最好有某种特定机制来定期进行备份。
There is an automatic mechanism for shifting the recording pen to keep it from going off scale.
有一个自动装置来移动记录笔，使其不致出格。
The data and conclusion are reference for the design, test and production of gun automatic mechanism.
研究中得到的数据和结论对火炮自动机的设计、试验和生产具有一定的参考和借鉴。
Ammunition feeding system must have the capability of stopping and starting quickly and frequently during the operation process of the automatic mechanism.
自动机工作过程中要求供弹系统具备快速和频繁的起停能力。
In automatic mechanism selection system based on orbit, orbit characteristics and dimension parameters of key orbit segments are momentous for selecting mechanisms.
基于轨迹的机构自动化选型系统中，轨迹特征及关键轨迹段尺寸参数是选择机构的重要依据。
In automatic mechanism selection system based on orbit, orbit characteristics and dimension parameters of key orbit segments are momentous for selecting mechanisms.
基于轨迹的机构自动化选型系统中，轨迹特征及关键轨迹段尺寸参数是选择机构的重要依据。
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