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A mixture of fire clay and ground quartz, used to line metallurgical furnaces. 硅石一种耐火土和石英的混合物，用于作冶金炉的内壁
High spicific surface, tiny granule diameter, goodactivity, can be used as substitute of well cement or silica flour to imporve well quality. 比表面积大，粒径微小，具有良好的胶凝性能，可替代井油水泥和/硅灰（珠）改善固井质量。
High spicific surface,tiny granule diameter,goodactivity,can be used as substitute of well cement or silica flour to imporve well quality. 比表面积大，粒径微小，具有良好的胶凝性能，可替代井油水泥和/或硅灰（漂珠），改善固井质量。
The fuzzy PID control method was proposed to meet the special control request of the stove temperature and pressure in the sphere silica flour production process,which in fact has achieved the control request in the production process. 针对球形硅微粉生产过程中球化炉温度,压力的特殊控制要求,提出了采用模糊PID控制的方法和算法,达到了生产过程中温度、压力的控制要求。
We grind up the wheat to make flour. 我们把小麦磨成面粉。
Next, the wheat is ground into flour at the mill. 然后，麦子在磨坊里被磨成面粉。
Grind up the wheat to make flour. 磨碎麦子制成面粉。
The flour was ground from barley. 这面粉用大麦碾成。
A variety of silica that contains microcrystalline quartz. 燧石含微小晶状的石英的各种硅石
The baker empty several bags of flour into a bin. 面包师把几袋面粉倒入贮藏箱里。
a mixture of fire clay and ground quartz,used to line metallurgical furnaces 硅石，一种耐火土和石英的混合物，用于作冶金炉的内壁
Flour is bolted to remove the bran. 面粉经筛选去掉麦麸。
The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
We made some bread with the flour he bought for us. 我们用他给我们带来的面粉做了一些面包。
A varietyof silica that contains microcrystalline quartz. 燧石含微小晶状的石英的各种硅石。
They are grinding wheat into flour. 他们正在把小麦磨成面粉。
The town miller was famous for his excellent flour. 镇上的面粉场主以优质面粉著称。
The ground was covered with ferns. 地面上长满了羊齿植物。
He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。