The specific surface area of catalyst decrease with preparing temperature increasing.
比表面积随催化剂制备温度和制备时间的增加而减小。
Reliable production of 525r ordinary Portland cement was therefore ensured by increasing the specific surface area of cem...
再通过提高水泥比表面积等技术措施，稳定生产525r普通硅酸盐水泥。
Reliable production of 525r ordinary Portland cement was therefore ensured by increasing the specific surface area of cem...
再通过提高水泥比表面积等技术措施，稳定生产525r普通硅酸盐水泥。
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