介绍特殊情况下连通器原理在无底阀排水系统中的应用。
This paper introduces application of no bottom valve pumping system using communicating principle in special situation.
物理实验，就是通过液体压强和连通器的原理，制造出喷泉的效果。
Physics experiments, that is, through the liquid pressure and the principle of connectors, to create a fountain effect.
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