ication) (表29) 兼容公共数据级别：单点状态 表29-监督控制-功能信号(Supervisory control -functional indication) DO(数据对象) Reference((引用代码) LN(逻辑接点) 组报警(group annunciation)..
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该系统以plc的先进功能特别是高速计数功能为核心，通过信号控制和数据运算，实现铸坯切割的自动定尺。
According to the core of PLC's advanced functions, especially its high-speed count function, the automatic cut to length is realized by signal control and data computing.
细胞表面的受体对外界信息的相应反应就是将信息以信号的形式传递给启动基因表达和控制细胞功能的细胞核。
In response to such incoming information, receptors on a cell's surface send signals to the nucleus that tweak gene expression and control cellular function.
到这时，用户可以编写shell脚本，在变量中存储信息和导出信息，控制文件描述符，控制信号处理，使用for循环和case语句，以及其他大量功能。
Now, users could write shell scripts; store and export information in variables; control file descriptors; control signal handling, for loops, and case statements; and so much more.
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