Water hydraulic drive system has some advantages of oil hydraulictransmission such as large power, high efficiency and compact structure as well as the unique advantage of environment-protection.
水压驱动系统既保持了油压传动传递动力大、效率高和元件体积小的优点，又兼有环保的积极作用。
2
It is generally composed of powertransmissionsystem, walk device, job device, turn to brakes system, hydraulic system and control system.
它一般由动力传动系统、行走装置、工作装置、转向制动系统、液压系统和操纵系统组成。
3
Which conditions can the hydraulic fluid shoulder to be able the normal work? In the hydraulic actuation system, the hydraulic fluid function is mainly effectively and stably the transmissionpower.