dual-flow oil burner

例句：

1. 1.This dual-flow oil burner is designed to reduce emissions and improve efficiency.
   这款双流式油炉设计用来减少排放并提高效率。
2. 2. The dual-flow oil burner was installed in the factory to replace the old one.
   这个双流式油炉被安装在工厂里来替换旧的。
3. 3. The engineers carefully inspected the dual-flow oil burner before installing it.
   工程师们在安装之前仔细检查了双流式油炉。