忽略: neglect; overlook字符: character组: group忽略字符大小写: ignore symbol case字符组: burst; character group; character set字符集;字符组: character set段略字符: character blockignore省略字符: apostrophe character编码字符组: code character set标识字符组: identification burst国际字符组: national character set国语字符组: national language character set结束字符组: terminator group识别字符组: identification burst数据字符组: data character set特殊字符组: special character set通用字符组: universal character set显示字符组: display character sets语言字符组: language character字符组应用: field utilization高密度字符组: high-density character set紧排三字符组: character triplet特种字符组合: special character combination结束字符组控制器: terminator group controller罗马扩充字符组: roman extension character set