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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目前我国规程规定仍按1956年制定的经济电流密度选取导线截面。

Now, the conductor section is selected in accordance with the economic current density stipulated in the code currently in effect which is issued in 1956.

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控制室内至少装两个可靠的远传水位表，每个远传水位表在运行规程规定的最低、最高安全水位刻度处应有明显的标记。

At least two remote water gauges should be installed in the control chamber. A clear mark should be made at the highest and lowest safe water line, which each remote water gauge runs as regulated.

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