Hydraulic pumps are often the focus of automotive engineers attempting to reduce energy losses. For example, power steering systems have progressed from purely hydraulic to electro-hydraulic and even purely electric to make the system more efficient
review of hydrologic and hydraulic methods to determine instream environmental flow，Onikpo Claude Randyx Martin，，To provide to their lives, humans need water. So it is used for irrigation purposes, energy (hydropower station), water supply and so on
海岸带利用水头或压力确定咸淡水界面位置方法的简要综述，周训，王莹，Methods of estimation of the location of a sharp fresh water-salt water interface with hydraulic heads or pressures are relatively simple and are widely used. Progress has been mad
