罗马: Roman Rome扩充字符: escape character组: group扩充字符: extension characterascii扩充字符集: ascii extended character set编码扩充字符: coded extension character代码扩充字符: code exte ion character; code extension character功能扩充字符: function extension character控制扩充字符: cec; control extension character带罗马字母的字符组: roman extension character set字符组: burst; character group; character set字符集；字符组: character set扩充字母表: extended alphabet扩充字体: expanded type扩充字型: extended font扩充字元: extended characters扩充字元集: expanded character set，ecs; extended character set补充字符: secondary characters补充字符集: supplementary character repertoire填充字符: file character; fill character; filling character; pad character; padding 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忽略字符组: character ignore block
