题目

英语翻译
1.In case of an “normally-open” valve the brake pads stay on the disc surface,but without pressure.
2.In case of an emergency-stop or a power failure the valve is not energized and the brake remains closed or opened,depending on the valves of the power unit.Refer to manual of power unit.
3、In case of an “normally-open” valve the brake pads stay on the disc surface,but without pressure/4.In case of an “normally-closed” valve,the brake remains in its actual state (pressurized / not pressurized).

提问时间：2021-03-26

答案

1.对于一个“常开”式阀,它的制动垫块贴在闸板表面,但没有施加压力
2.在紧急停止或电源故障的情况下,阀不通电,根据阀的电源设备不同,制动会保持在关闭或开放状态.查看电源设备的操作手册.
3.对于一个“常开”式阀,它的制动垫块贴在闸板表面,但没有施加压力
4.对于一个“常关”式阀,它的制动仍保持现状（加压的/未加压的）.
（哦,太专业了,仅供参考.）