A new machine for boring holes in paper tapes is described in this paper. The drive system and the method of boring holes as well as the principle are also analyzed and studied in this paper too.
介绍一种新型的纸带打孔机，并对它的传动系统、成孔方法和原理作一分析和研究。
A new machine for boring holes in paper tapes is described in this paper. The drive system and the method of boring holes as well as the principle are also analyzed and studied in this paper too.
介绍一种新型的纸带打孔机，并对它的传动系统、成孔方法和原理作一分析和研究。
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