对于高，低报警，溢流保护，泵控制，包括宽的压力和温度的要求，和卫生应用。
For high and low alarms, overfill protection, pump control, including wide pressure and temperature requirements, and hygienic applications.
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重油系统溢流观察报警器；
Heavy oil system overflow observe alarm.
燃油溢流舱高位报警f。
O. overflow tank high level alarm.
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