【填空题】
4.机组超速试验时汽机真空不小于___。
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88KPa
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【填空题】
11. 1号机除氧器一共分为五个液位开关，高Ⅰ水位___，高Ⅱ水位___mm，高Ⅲ水位 ___ mm，低Ⅰ水位___ mm，低Ⅱ水位___。分别动作于报警、报警、事故、报警、事故。
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