Function & application:Pressure protect switch. It is widely used on pressure protect of gas pipeline.

功能及用途：压力保护开关。广泛应用于各种气体压力保护。

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This artcle analyses the high—pressure header steam water side excess pressure protect theory of local N200—130/535/535 turbine, and shows the relevant requirement to operator.

针对国产N200—130/535/535型汽轮机，分析其汽水侧超压保扩原理，并对运行人员提出了相应要求。

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youdao

Companies, under increasing pressure to protect their profits, will focus more attention on white-collar productivity.

ECONOMIST: Business

But as these economies face their most severe recession in more than three decades, governments are coming under pressure to protect the jobless.

ECONOMIST: Asia goes on the dole

The Philippine government is also coming under pressure to do more to protect the Filipino clan.

BBC: Malaysia soldiers attack armed Filipino clan in Borneo