Fire extinguishers are located on each floor and in each apartment.

每个公寓和楼层都有灭火器。

I require foam extinguishers.

我船需要泡沫灭火器。

Are these fire extinguishers working?

这些灭火器好用吗？

A: Are these fire extinguishers working?

A：这些灭火器好用吗？

Replace portable extinguishers with broken seals.

把有损坏封印的手提式灭火器换掉。