The absorbing mechanism of metallic ultra fine grain has been analyzed.

分析了金属超细颗粒的吸波机制。

Special ultra fine sub micron grade for high speed milling especially for mould making.

特别适合高速铣削的晶粒度为超细的牌号，特别适合模具制造。

Equal channel angular extrusion is a new technology of obtaining ultra fine grain materials.

等通道转角挤压是一种新的制备超细晶粒材料的技术。

In recent years, appended Inhibitors in ultra fine cemented carbides are studied at home and abroad.

近几年以来国内外对超细硬质合金中添加抑制剂进行了大量的研究。

The result of DSC of the ultra fine RDX and the ordinary RDX suggest that the melting point of ultra fine RDX reduced.

对超细rdx和普通工业原料rdx进行的DSC热分析表明，超细rdx的熔点有所降低。