They invented the stored program control switch in the 1970s, as a move toward cost reduction and reliability.
1970年代他们发明了程控交换机，保证了可靠性，降低了成本。
The carbon dioxide recycle unit automation control adopts Siemens PLC control, each link of the program, chain, security protection control have to considerate, and good reliability.
本二氧化碳回收装置的自动化控制采用西门子的PLC控制，每个环节的程序、连锁、安全保护等控制考虑得周全且可靠性好。
To increase control system's steady ability and reliability we keep the scene data and program to return to normal.
为了提高控制系统的稳定性和可靠性，采用现场数据自动修复，程序自动恢复等设计方法。
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