n. blub
粉煤灰泡沫水泥 Fly ash foam cement
灰毛泡 Rubus irenaeus
灰绒泡菌 Physarum cinereum
·2,447,543篇论文数据，部分数据来源于NoteExpress
对于一些适宜的煤种，利用净化能力强、分选效率高的旋流微泡浮选柱可以分选出灰分小于2%的低灰煤。
Low ash coal with an ash content lower than 2% can be separated from some suitable coal with its purification ability and by a high efficient cyclonic microfoam columned pneumatic floatation machine.
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