Question

哪位大侠帮我翻译一句话！谢谢！在线等！

就是这句话：“并研制开发了一段式，二段式一系列新型煤气发生炉产品。完善了机械加煤系统，饱和温度的闭环控制，自动补水系统等配套设施。”

拜托各位了！！！
“机械加煤”好像不是machinery and coal
这应该是一个名词！！！
不过还是要谢谢楼上这位！！！

Answer 1

...and researched one-part & two-part series of new gas furnace products. Improved the machinery and coal, saturation of the closed-loop temperature control, automatic replenishment system and other supporting facilities.