Elastic compute cloud - a web service providing resizable compute capacity in the cloud.

弹性计算云——这是一个Web Service，提供了云环境下的弹性计算能力。

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Examples of the services offered by Amazon Web Services are Amazon Elastic Compute Cloud (Amazon EC2), Amazon Simple Storage Service (Amazon S3), Amazon SimpleDB, Amazon Simple Queue Service (Amazon SQS), Amazon Flexible Payments Service (Amazon FPS), Amazon Mechanical Turk and Amazon CloudFront.

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