A simple and feasible low-cost experimental system has been designed and made by using the lateral moving structure of the old-fashioned needle-type printer as the basic mechanic structure.

利用旧式针式打印机的横向走行结构，作为倒立摆的基本机械结构，设计并制作一种简单可行的低成本倒立摆实验系统。

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The present paper has introduced in detail the pilot production and research and development of cemented carbide printing needle with high ductility used for electronic printer.

本文介绍了电子打印机用高韧性硬质合金打印针的研制与开发。

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