国家语言文字工作委员会和新闻出版署1990年3月修订发布的《标点符号用法》增加了连接号和间隔号,其中连接号为一字线“—”。此项规定似欠妥。科技期刊近年来普遍把起止号定为一字线“—”或者浪纹线“～”,而把连接号定为半字线“-”,二者的涵义和用法不同。我建议:起止号和连接号应当按照习惯用法加以区别。 National Language Committee and the Press and Publication Administration revised in March 1990 released the “punctuation usage” added a connection number and spacers, where the connection number is a word line “-”. This provision seems to be defective. In recent years, sci-tech periodicals have set the starting and ending number as a word line “-” or a moire line “~”, and the connection number as a half word line “-”. The meaning and usage of the two are different. I suggest: The starting and ending number and connection number should be different according to the usage.