Function as a resistor in normal operation condition.
正常情况下具电阻功能。
Under the normal operation condition, the maintenance of the refrigeration system can be carried out.
在机组正常运行的情况下，可以对制冷系统进行检修。
According to the flux, water level, temperature, etc, PLC sends out command to start or stop pumps, and keeps the system in normal operation condition.
PLC根据所采集的流量、水位、温度等条件自动控制开、停泵的台数，以确保清水供水系统的正常运行。
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