fine grain size

基本解释

Almost every soil test code demands soaking treatment for fine clastic soil before grain -size analysis.
几乎所有的士工试验规范均要求细碎屑土在颗粒分析前进行浸泡处理。
White fused alumina products including section sand, grain-size sand; fine powder and micro powder are widely used in refractories, abrasives and other industries.
白刚玉段砂、粒度砂、细粉、微粉在耐火材料、磨料磨具等不同行业具有广泛的用途。
The optical microscope, SEM and TEM tests show that the final microstructure consists of fine grain size acicular ferrite or quasi-polygonal ferrite■pearlite and little granular bainite, etc.
通过光学显微镜、扫描电镜、透射电镜研究表明：最终组织为细小的针状铁素体或准多边形铁素体、珠光体及少量粒状贝氏体等组成的混合组织。