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Derail Valley
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Boiler/2/zh-hans
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From Derail Valley
大多数蒸汽机都有一个安全阀，可以在锅炉超压时释放多余的蒸汽。建议锅炉中的压力与运行发动机所需的压力一样大，不要超过，因为过量会导致燃料浪费。
