hydraulic system pressure；液压系统压力 hydraulic system pressure release；液压系统压力释放 hydraulic system pressure spike；液压系统压力峰值 ..
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Stop the engine and release the pressure in the hydraulic system.
停止发动机，释放液压系统的压力。
Because the rolling machine working instruction has stipulated: when the equipment starts the hydraulic system should be at the release of pressure condition.
因为辊压机操作规程规定：设备启动时液压系统应处于卸压状态。
Test results show that the hydraulic valve actuation system can realize continuously variable valve lift and the early intake valve closing by changing the time of oil pressure release.
通过实验证明这种液压气门机构可通过改变泄油初始相位角实现进气门最大升程和进气迟闭角的连续可变。
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