BACKGROUND AIM: To establish a stable in vitro culture technique of human oocytes.

背景与目的：建立一种稳定的人卵母细胞体外培养成熟技术。

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The pure play BPM products that come from this background aim to ease the automation of software support for such business process descriptions.

由这个背景所产生的纯bpm产品旨在通过软件自动化来简化对这类业务过程的描述。

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Part one introduces the background, aim and significance of the study.

第一部分介绍了本研究的背景，目的和意义。

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Espaillat, 57, who would have been the first Dominican-American to serve in the House, used his background to court Latino votes and take aim at the 82-year-old Rangel over his long tenure in Washington and his ethics abuses.

CNN: Rangel as resilient as Harlem-area district he represents

He said their aim was to find a talented student from a "humble background" and provide them with the "best education possible".

BBC: Suffolk

The aim is to freeze the runners, but at the same time blur the background with a streaky effect to show speed.

BBC: Picture power: Running for gold