翻译求助a full bore pattern？ 看了补充的原文就清楚多啦。 valves must also be accessible for routine maintenance, such as re-packing of glands and the replacement of internals. to facilitate this sort of work, isolating valves of a full bore pattern either side of the valve will keep plant downtime to a minimum while the work is carried out. 维修阀门的时候当然是要把该阀两侧的切断阀都关断，才可以进行维修工作。人家原文中也写明了是isolating valves , 只切断一边进行维修安全上是不允许的吧。因为只更换阀门内件，维修阀门时倒是没必要把阀门拆下来。 至于为什么是a full bore pattern either side of the valve，是说明该需要维修的阀采用的是single valve isolation, 就是说每侧只设置一个通径切断阀。而有些设备的两侧是要求各有两个切断阀来实现隔离的,比如高压工况。就看你如何规定装置的isolation philosophy了。查看更多
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