low perssure alarm device
...gh medium expansion foam extinguishing system 局部应用式高倍数、中倍数泡沫灭火系统 low perssure alarm device 低压报警器 low pressure warning switch 低压报警开关 ..
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低压报警器可以提醒作业人员及时对蓄电池充电;
The low pressure alarm device is capable to remind workers to charge the accumulator in time;
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