A more well known branch of fluid power is hydraulics .
流体动力的一个更广为人知的分支是水力学。
The expansion will add research capabilities in engines , fuels and hydraulics , among other areas .
此次扩建将增强卡特彼勒在发动机、燃料和水力学等领域的研究能力。
James , a sharecropper 's son , was studying airplane hydraulics . Michael was the fourth of five children born to the jordans . He has two older brothers and an older and younger sister .
