label combination标号: grade; indicia; key; label; ...组合: make up; compose; constitute标号组: label group; label set标号集, 标号组: label set无标号信号组: unlabelled block下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:标号组合,即可在微信中查询翻译