分级筛分 meaning in English
step sizing
Examples
- It has not only better physics machine function , but also better bio - compatibility , bone - combined character than bio - metal and alloys , bio - ceramics and bio - macromolecule etc . making use of the water heat synthesization method , air current comminution method and classification filtration composite technique has preparated even crystal of ha , average particle size is 280nm
本文研制了无机纤维增强pmma ha人工颅骨复合材料，该复合材料与金属材料、陶瓷材料和高分子材料相比，不仅具有良好的物理机械性能，而且具有良好的生物相容性和骨结合特性。利用水热合成法、气流粉碎法和分级筛分等多种技术制备了粒径均一的ha晶体，平均粒径为280nm 。