In a vacuum exhaust system, sealing steam to the turbine shaft labyrinth seals must be admitted to avoid loss of vacuum.
在真空排气系统中，必须引蒸汽到汽轮机主轴迷宫式密封，以防真空损失。
If you stop asking why you were killed instead of someone else, stop investigating the vacuum left by your loss, stop wondering what everyone left on earth is feeling, you can be free.
如果你不再质疑为什么是自己被杀而不是别人、不再调查失去了你之后所留下的虚空、不再想知道还留在人间的那些人在想些什么的话，你就解脱了。
The mathematical model can be used to predict the variations of temperature and mass loss for understanding the mechanism of vacuum cooling.
数学模型可以准确预测真空冷却过程中的温度变化和质量损失，将有助于进一步理解和研究真空冷却机理。
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