求翻译：高中低压汽封为迷宫式汽封，高压缸的各汽封约在10％负荷时变成自密封，中压缸的各汽封约在25％负荷时变成自密封，蒸汽排到汽封系统的联箱，再从联箱流向低压汽封。大约在75%负荷下系统达到完全自密封。多余的蒸汽，通过溢流阀流往凝汽器。是什么意思？

Labeled labyrinth steam seals of high school low-pressure steam, high pressure cylinder steam seal approximately 10% load to become self-sealing, pressure cylinder steam seal into self-sealing about 25% load, the steam discharged to the steam seal the system's header from the header flow of low pres

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High school low pressure seal labyrinth seal, sealing of high pressure cylinder about 10% when loading into a sealed, pressure in cylinder seal in about 25% when loading into a self sealing, steam to the steam-sealing systems of headers, then flows from the Chamber of low pressure steam. About 75% s

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