stem or shaft blow out resistant怎么翻译? Following devices will be considered at the pump discharge: 泵出口考虑下列设备: - P lower than or equal 40 barg (600 psig): one check valve. P≤40 barg:一个 单向阀 - P higher than 40 barg (600 psig) and smaller than 80 barg (1200 psig): two check valves of different type (stem or shaft blow out resistant, preferably of the non slamming type). 最后一句括号里stem or shaft blow out resistant怎么理解?谢谢!! 查看更多7个回答 . 1人已关注