2) low water cement ratio
低水灰比
1.
Hydrated performance and microstructure of portland cement with low water cement ratio;
低水灰比下硅酸盐水泥的水化性能和微观结构
2.
The hydration degree of Portland cement under the condition of low water cement ratio was tested,and the microstructure of hardened cement paste was studied by means of XRD and SEM.
研究了低水灰比硅酸盐水泥的水化程度,并利用XRD和SEM分析了硬化水泥浆体的微观结构。
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-temperature ashing
低温灰化
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