The preparation method is to dry and cool the filler, blend the ingredients, mill and uniformly mix the ingredients by omnipotent disintegrator, package the qualified mixture after sampling analysis.
其制备方法是，将填充剂干燥、冷却，然后将配方料混配， 经万能粉碎机磨细、混合均匀，经取样分析，合格后进行包装。
Relationship between gravimetric and fibre concentrations of airborne asbestos dust has been established by simultaneously sampling with two methods on 15 sites in an asbestos paper mill.
本文用现场平行采样的方法研究石棉造纸行业的各扬尘点粉尘重量浓度与纤维计数浓度间的转换关系。
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