求助关于“双阻断-泄放”的阀门设计的一段话的翻译？ or tagging, two in-line valves and by opening and locking, 或者贴标签，2个在线阀门，开和关； 我都分别把逗号改成冒号，你看行么？ or tagging , two in-line valves and by opening and locking, 或者贴标签：2个在线阀门，开和关； or tagging , a drain or vent valve in the line between the two closed valves. 或者贴标签：在两个关闭阀门之间的放泄或放空。 查看更多
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