Next the hydrokinetics, the hydromechanics and the hydrostatics.

接下来的是流体动力学，流体力学和流体静力学。

This principle, now known as Archimedes' principle, was a pivotal discovery in the field of hydrostatics.

这个原理，现在被称为阿基米德原理，是流体静力学领域的一个关键发现。