Middleware creates a flexible system where the underlying RDBM may be seamlessly changed, and additionally allows a single database server to be replaced with a cluster of machines.

中间件创建一个灵活的系统，在这个系统中，底层的RDBM可以无缝地改变，而且允许用集群替换单一的数据库服务器。

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Gearman takes a different approach by providing a flexible mechanism for distributing discrete tasks around a group of machines.

Gearman采用与之不同的方法，它为跨一组机器分布离散的任务提供一种灵活的机制。

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This architecture is flexible, allowing a single server to capture any number of browsers from other machines in the network.

这个架构比较灵活，允许单个服务器从网络中的其他机器捕获任意数量的浏览器。

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Dennis Hong, a robotics engineer at Virginia Tech, said research into "soft robotics" was part of a wider trend towards designing more flexible and innovative machines, such as his own "Whole Skin Locomotion" (WSL) robotic mechanism.

CNN: Robotics discovers its soft side

In contrast, a NoSQL database provides a more flexible data model, and it can be scaled across multiple machines.

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And for those worried about machines taking over, more research will be carried out into what Dr Jennings calls flexible autonomy.

ECONOMIST: Artificial intelligence