| 摘要 |
The actuator consists of a power cylinder (1), a pump (11) and a motor (12), linked to a hydraulic fluid source in the form of a pressure accumulator (4). The hydraulic circuit incorporates descent (15) and ascent (16) channels with electrically operated valves (2,6) and non-return valves (3,5) between the hydraulic cylinder pressure chamber and the pump.
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