The automatic accumulator system can automatically maintain the workingpressureof the accumulator in specified range and is widely applied in the hydraulic system of truck cranes.
自动蓄能器系统能够使蓄能器工作压力自动保持在设定的范围内，在汽车起重机液压系统中获得广泛应用。
2
After pressure grouting on pile tip, elastic workingrangeof piles will be extended and be in favour of pile to bear repeated loads and dynamic loads.
桩端压力灌浆后，桩的弹性工作范围延长，有利于桩承受重复荷载和动力荷载。
3
During different lift range phases when a CAM controls the distribution spool of a giant hydraulic press, the CAM's requirement for the pressure Angle of its theoretical working profile is different.