1) ultra-low ash and ultra-low sulfur clean coal
特低灰低硫洁净煤
1.
This paper introduced the experimental study on production of ultra-low ash and ultra-low sulfur clean coal by column flotation.
5%的特低灰低硫洁净煤的实验研究过程。
2) low ash clean coal
低灰洁净煤
3) low-carbon clean steel
低碳洁净钢
4) ultra low-ash coal
超低灰煤
1.
Preparation of ultra low-ash coal by deashing with acid & alkali;
酸碱脱灰法制备超低灰煤
5) low ash coal
低灰煤
6) low ash coal
低灰分煤
补充资料：低都儿低
1.低而又低，很低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条