英语词汇“Covering group”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

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单词	Covering group
释义	Covering group 原声例句 BBC 听力 2016年5月合集 The authorities accused the broadcaster of breaking Iraqi Media guidelines which include restrictions on covering insurgent groups. 伊拉克当局指控该广播公司违反了伊拉克媒体指导方针，其中包括禁止报道反叛组织。中高级英语短文 According to the China Association of Performing Arts (CAPA), more than 20 singers have so far announced solo concerts, covering all age groups from performers in their early 20s to their 60s. 据中国演出行业协会（CAPA）称，目前已有 20 多名歌手宣布举办个人演唱会，涵盖了从 20 出头到 60 多岁的表演者的所有年龄段。英语百科 Covering group In mathematics, a covering group of a topological group H is a covering space G of H such that G is a topological group and the covering map p : G → H is a continuous group homomorphism. The map p is called the covering homomorphism. A frequently occurring case is a double covering group, a topological double cover in which H has index 2 in G; examples include the Spin groups, Pin groups, and metaplectic groups.
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