bottom-blown oxygen converter

例句：

1. 1. This is the type of oxygen converter that we need for our diving equipment.
   这是我们潜水装备所需要的那种氧气转换器。
2. 2. The engineers at the research lab are using a bottom blow oxygen converter to test their new device.
   研究实验室的工程师们正在使用一种底部吹气的氧气转换器来测试他们的新设备。
3. 3. The bottom blow oxygen converter was designed to improve the efficiency of oxygen delivery during scuba diving.
   底部吹气的氧气转换器被设计用来提高潜水时氧气输送的效率。