这段话怎么翻译? 请教高手下面这段话如何翻译: Introduction of free water to the catalyst should be avoided to prevent temporary deactivation of the catalyst. Only fill the reactors with benzene that has been circulated and dried.查看更多11个回答 . 1人已关注
plan52方案中下句做啥解释?? 第一句Outboard seal acts as a safety backup to the primary seal . 第二句Piping loop must self-vent to vapor recovery/flare system near atmospheric pressure.查看更多3个回答 . 1人已关注