The results show clearly that the microwave absorption of dispersions of metallic ultra fine grain relates to particle size, coating thickness, and method preparation.
结果表明：金属超细颗粒弥散系的微波吸收与粒度、涂层的厚度及配制方式有关。
The technology of coating TiO 2 film on the surface of ultra fine calcined coal kaolin particle was studied.
研究了超细煤系煅烧高岭土颗粒表面包覆二氧化钛膜的工艺。
The disappearance of the small particles and the increment of the middle particles decrease along with the increase in the particle size of the ultra-fine carbonyl nickel powder.
随着超细羰基镍粉末平均粒度的增大则小粒度粉末的消失和中等粒度粉末增加量也随之减少。
Material: imported ultra-fine particle tungsten steel, applies to medium carbon steel with rigidity HR200-HB300R, aggregate, stone and image RBI.
材质：超微粒钨钢，用于硬度在HR200-HB300R的中碳钢，铸铁的细线加工用于加工骨料，石料，以及影象打点。
This paper offers a hydrometer method for determining size distribution of ultra-fine particle in coal water slurry and discusses its mechanism, operation procedures and date calculation.
提出了水煤浆中超微细颗粒粒度的比重计检测方法；
Series A, made of imported ultra-fine particle tungsten carbide, processed by 5-axis CNC grinding machine and special sharpening, high abrasion resistance and anti-broken.
A系列雕刻切割刀具，全部采用进口超微粒钨钢材料，经五轴联动数控磨床，专利特殊刃磨工艺精制而成，具有超强的耐磨性和抗断性。
Series A, made of imported ultra-fine particle tungsten carbide, processed by 5-axis CNC grinding machine and special sharpening, high abrasion resistance and anti-broken.
A系列雕刻切割刀具，全部采用进口超微粒钨钢材料，经五轴联动数控磨床，专利特殊刃磨工艺精制而成，具有超强的耐磨性和抗断性。
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