lean coal

短语词组

短語

• lean -coal 雙強煤粉少油點火器
• Lean clean coal 瘦精煤
• rich -lean pulverized coal burner 濃淡型煤粉燃燒器
• lean coal burner 貧煤型燃燒器
• lean coal -fired 貧煤
• lean coal char 貧煤焦
• firing lean coal 燃燒貧煤
• production meager lean coal 貧瘦煤
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