An air mortar (or debris mortarhttp://books.google.

1. Air mortar is often used for repairing historic buildings due to its compatibility with the original construction materials.
   氣硬性砂漿常用于修復(fù)歷史建筑，因?yàn)樗c原建筑材料相兼容。
2. The mason prepared several batches of air mortar to ensure enough material for the day's work.
   泥瓦匠準(zhǔn)備了幾批氣硬性砂漿，以確保當(dāng)天的工作材料充足。
3. Unlike hydraulic mortars, air mortars cannot set under water.
   與水硬性砂漿不同，氣硬性砂漿不能在水下凝固。