The multifunctional cryptogrammic lock that consists of wireless communication, 24C01A ISD1420,single-chip microcomputer and telephone network is introduced in this paper.

文章介绍了一种采用无线通信、24C01A、ISD1420、单片和电话网组成的多功能密码锁的电路设计。

Give priority to develop and manufacture full-face excavator, large-tonnage hydraulic excavator, heavy-tonnage loader, autocrane series, medium and small tonnage and multifunctional loaders.

重点开发生产断面掘进、大型液压挖掘、大吨位轮式装、系列汽车起重以及静液压式中小吨位和多功能装。