Electrical signals are sent to the hydraulic valves by the microcomputer when a gear change is required by the powertrain control strategy . 当按照动力装置控制方案要求换挡时，电信号由微计算机送到液压阀。
In hydraulic systems, the flow rate of the fluid may be considered as a through variable, and the pressure causing the flow may be the across variable . 在水利学系统中，流体的流速可考虑作流通变量，而引起流动的压力可考虑作跨接变量。
In the case of electric networks, as well as hydraulic or pneumatic systems, the through quantity is conceived of as a flow and is intuitively easy to visualize . 在电网络，水力或气体系统的情况下，流通量被设想成流量，这是容易直觉地想象出来的。
Digital simulation of concrete - pump hydraulic system 混凝土泵车液压系统仿真研究
Hydraulic tap hole drill with folding rotary mechanism 转臂折叠式全液压开铁口机
Accessories for hydraulic load cells , model 3099 型号为3099的液压测力元件的配件
Design specification for hydraulic prestressed anchorage 水工预应力锚固设计规范
Synthetic stress life testing for hydraulic pump 液压泵综合应力寿命试验方法研究
Hydraulic civil engineering - part 2 : rehabilitation 水力土木工程.第2部分:复原
