Problems with data on multiple volumes if you have logs on separate devices or just your database spanning across multiple volumes you will be in trouble as you will not get consistent snapshot across all the database 多卷上的数据问题如果你把日志放在独立的设备上或者你的数据库分布在多个卷上，这就比较麻烦了，因为无法得到全部数据库的一致性快照。
From author ' s working practice , this paper has introduced classification methods of series and multi volume book , expounded that book classification should be linked with book arrangement and reader convenience 结合图书馆工作实践,从利于排架和读者检索的角度介绍了对丛书、多卷书等图书的分类方法。阐述了图书分类不应是单纯的为了类分图书而分类,应与书库的管理和方便读者检索联系起来。
Qlfm720 、 900 、 1000 、 1200 quickly laminator ( with cutter ) inhabit small area , handle convenient , speed fast , equip automatic temperature - control and speed - adjust , get automatic papers - transport function , and set up automatic one - off cut larger 、 excrescent material , it also can instead of cutting machine 1200型快速复膜机（带分切） ，该机占地面积小，操作方便、速度快、配有自动控温调速，装有自动输送纸张功能，还设有自动一次性分切多卷、多余材料，可代分切机。
Qlfm720 , 900 1 , 000and1 , 200yquick filming machine ( with cutting ) has following merits : occupies a small area , aperates conveniently , speed is quick , equips automatic temperature control and speed regulation , has the function of automatic conveyer paper and also sets up automatic and disposable cuting several coils and redundant materials . it can substitute cutter 该机占地面积下，操作方便、速度快、配有自动控温调速，装有自动输送纸张功能，还没有自动一次性分切多卷，多余材料，可代分切机。
