This implementation can serve as a testbed for users to learn and experiment with BPEL4WS.

用户在学习和试验BPEL4WS时可以用这个实现来充当试验地。

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When Constellation was proposed, returning to the Moon was said to be a testbed for going on to Mars.

当年提出“星座”计划时，重返月球曾被当作走向火星的实验台。

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Hybrid clusters tend to be used as a testbed for various new applications or as an extension of an existing cluster.

混合式集群往往用作各种新应用程序的实验台，或者用作对已有集群的扩展。

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As London is the world's fifth largest city, with a hugely diverse cultural population, it makes the perfect testbed, said Mr Rattner.

BBC: Intel to use London as a smart city lab

Building on these efforts, I challenge broadband providers and local leaders to bring at least one gigabit testbed community to all 50 states by 2015.

FORBES: Faster, Sooner: Why The U.S. Needs 'Gigabit Communities'

DRIVER-II will consolidate these efforts and transform the initial testbed into a fully functional, state-of-the art service, extending the network to a larger confederation of repositories.

UNESCO: Global Open Access Portal