secondary grout hole

例句：

1. 1. The engineer found a secondary grout hole in the wall that needed to be filled.
   工程师在墙上发现了一个需要填充的次要砂浆孔。
2. 2. The construction crew noticed a secondary grout hole in the floor and immediately addressed it.
   施工队注意到地板上的一个次要砂浆孔，并立即处理了它。
3. 3. The repair technician was instructed to fill the secondary grout hole before proceeding with the rest of the repairs.
   维修技术人员被指示在继续修理之前先填充这个次要砂浆孔。