- lengthen the life of a furnace
- 延长: lengthen; extend; prolong; p ...
- 炉龄: furnace age; furnace life; c ...
- 炉龄: furnace age; furnace life; [玻] campaign; furnace campaign (两次大修之间) 延长炉龄 lengthen the life of a furnace
- furnace炉龄: furnace age; furnace life; [玻] campaign; furnace campaign (两次大修之间) 延长炉龄 lengthen the life of a
- 炉龄期: furnace campaign
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