Pfas
abbr. personal fall arrest system 防坠落系统; [医][=performic acid-Schiff reaction]过氧甲酸-席夫反应
🗣️ 情景例句
Richard, this is Mitchell Johnson.
Richard，这是Mitchell Johnson。
Yes, and you may stay there longer.
对，而且你也许会在那儿住久一些。
Even if two of these were flooded, she would still be able to float.
即使有两个舱进水，仍可漂浮的水面上。