Each period ends with a member of the family of elements called the noble gases.

每一周期以惰性气体的主族元素结束。

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This paper introduces an infinitesimal exceptional family of elements by means of an exceptional family of elements. By using inversion operation, duals of these exceptional families are obtained.

利用元素例外族引申出无穷小元素例外族，并通过反演运算，得到了两个例外族的对偶。

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Ubuntu 10.10 is the first version of Ubuntu to come with the Ubuntu font family, and it USES it for many user interface elements by default.

Ubuntu 10.10是第一个带有ubuntu字体族的版本，默认设置下，这一字体将被应用在许多用户界面的元素中。

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"At times the contentious battle is between the interests of the masses, the public,of the nation, of the people,and the interests of a special elite group, either family,cronies or political elements.

VOA: standard.2009.12.21

William Boyce QC, representing the family, described elements of the inquiry as "a circus".

BBC: Huddersfield soldier's inquest records open verdict

But there are elements of this family atmosphere that Ability Tec are keen to revive.

BBC: Remploy factory re-opens as social enterprise

The report looks at elements of the system of state support which have the effect of cutting a family income in real terms, as a second earner works more.

BBC: Man in shirt and tie playing with child's toys