描述
在工业生产过程当中，存在一些如温度、压力、流量、液位和速度等连续变化的量（即模拟量），PLC采用相应的A/D和D/A转换模块及各种各样的控制算法程序来处理模拟量，完成闭环控制。PID调节是一般闭环控制系统中用得较多的一种调节方法。过程控制在冶金、化工、热处理、锅炉控制等场合有非常广泛的应用
NEW Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
67 Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
66 Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
65 Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
64 Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
63 Sundstrand-Sauer-Danfoss Hydraulic Series 47 Pump
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NEW Sundstrand-Sauer-Danfoss Hydraulic Series 23 Pump
