The choice of metadata facility affects the experience of expressing metadata, but the fundamental idea of associating additional data to program elements is common to all metadata facilities.

元数据功能的选择会影响表示元数据的方式，但是将附加数据与程序元素相关联的基本想法对所有元数据功能而言是相同的。

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They are the aesthete's choice: a non-warring blend, at last, of Catalan and Castilian elements, of Barcelona and Real Madrid – the great incompatibles of international team construction.

他们是审美家的上选：加泰罗尼亚与卡斯蒂利亚，巴萨与皇马，本是水火不容的元素，却和平地融为一体。

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"The material choice conveys a certain timelessness and ease of maintenance - both elements much needed for a public space of this nature," said the architects.

“材料的选择传达一定的永恒性和易维护性——这些元素被这种自然的公共空间所需要，”建筑师说。

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Then a coat is applied of yttrium, barium and copper, the metallic elements of YBCO, today's HTS recipe of choice, along with impurities just nanometres (billionths of a metre) across.

ECONOMIST: Inside story

With their backs against the wall, Republicans in Congress ended up supporting some of the elements of the American Jobs Act, but others they refused to support because they made the choice that it was more important to protect subsidies for oil and gas companies, or tax loopholes for the wealthiest Americans.

WHITEHOUSE: Press Briefing

Other key elements of the act include access to a choice of high quality services and ensuring that public service principles remain at the heart of British broadcasting.

BBC: Media bill becomes law