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。
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。
Because the rolling machine working instruction has stipulated: when the equipment starts the hydraulic system should be at the release of pressure condition.
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