| 摘要 |
This shovel comprises a main pump (14), a hydraulic actuator (1A, 1B, 7, 8, 9, 21) that is driven by hydraulic fluid delivered by the main pump (14), and an accumulator (41) that accumulates the hydraulic fluid discharged from the hydraulic actuator (1A, 1B, 7, 8, 9, 21) and can release the hydraulic fluid to the intake side of the main pump (14). |
