A vacuum is also used on the condensers of our steam turbines, in our distillation processes, and in our refrigeration processes.
真空用于汽轮机的冷凝器，蒸馏技术和制冷处理。
A vacuum is also used on the condensers of our steam turbines, in our distillation processes, and in our refrigeration processes.
真空用于汽轮机的冷凝器，蒸馏技术和制冷处理。
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