Because of their simplicity, key-value stores are useful for a smaller set of jobs but can do those jobs very quickly.
由于其简单，键值存储对于较小系列的作业非常有用，而且可以非常快速地执行那些作业。
This update is designed to reduce rankings for low-quality sites - sites which are low-value add for users, copy content from other websites or sites that are just not very useful.
这次更新的目的是降低劣质网站的排名，包括对用户价值低的、从其他网站拷贝内容的网站或不太有用的网站。
In fact, the process of providing a context in the first place can be a very useful exercise in terms of identifying the value of a particular practice or set of practices.
实际上，首先提供上下文是一种非常有用的练习，对识别某个或某组特定实践的价值非常有帮助。
The use of machines for pattern recognition is a very useful work, such as series of symbols to identify the machines are of great value.
使用机器来进行模式的识别是一项非常有用的工作，能够辨别符号等系列的机器是很有价值的。
So, the structure character study of rock mass is very useful to value the wall-rock's stability of underground powerhouse.
因此，研究地下硐室的岩体结构特征，对评价地下硐室的围岩稳定性是很有帮助的。
The truth value table is both a kind of logic approach widely used in formal logic and a very useful tool.
真值表是形式逻辑中广泛使用的一种逻辑方法，也是一种非常有用的工具。
And this value will be very useful in our forum in the future, so let's do it!
威望值将来在我们论坛里会很有用，加油啊！
Conclusion the 5 regions divided on CT anatomy of the thoracic outlet and inlet are very useful for the localization and definition in the diagnosis, which have important clinical value.
结论在CT上对胸腔出入口区合理的5区划分，有利于病变的定位和定性诊断，具有重要的临床应用价值。
Conclusion the 5 regions divided on CT anatomy of the thoracic outlet and inlet are very useful for the localization and definition in the diagnosis, which have important clinical value.
结论在CT上对胸腔出入口区合理的5区划分，有利于病变的定位和定性诊断，具有重要的临床应用价值。
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