| 摘要 |
Replacing fluid in a sealed system interconnected by fluid conduction tubes with a lower port of a spent fluid container and a lower port of a new fluid container. A fluid pump is interconnected by the fluid conductors in such manner as to suck air from an upper port of the spent fluid container, thereby urging spent fluid from the system into the spent fluid container, and simultaneously forcing air into an upper port of the new fluid container thereby urging new fluid into the system to replace the spent fluid.
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