ssd内存储的编写次数是有限的(取决于技术)；因此，在编写数据时要尽可能的有效是非常重要的。

The storage within an SSD can be written a finite number of times (depending on the technology); therefore, it's important to be as efficient as possible when writing data.

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如果对这次飓风损失估计有效的话，飓风艾琳将使2011年成为美国自然灾害次数破纪录的一年。

If damage estimates hold, Irene would make 2011 a record-breaker.

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原子数据可以用传统的关系型方法进行查询，而对于非层次数据，这要比 XML 导航更为有效。

The atom data can be queried with traditional relational methods, which for non-hierarchical data is more efficient than XML navigation.

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