所有腐植酸都有疏松的海绵结构，同时有大量的内部空间。
All HA's showed a loose spongy structure with a large number of internal Spaces.
膜层由内部致密层和外部疏松层组成。
It is composed of inner compact layer and Outer loose layer.
有机离子交换剂的颗粒核心结构疏松，交换反应不但在颗粒表面，而且在颗粒内部同时进行，软化效果好。
Organic ion exchanger particle core structure is loose, exchange reaction not only in the particle surface, and within the particles simultaneously, softening effect is good.
连铸过程中出现的铸坯中心偏析和中心疏松会严重影响铸坯内部质量。
Center segregation and center porosity will seriously affect the internal slab quality for continuous casting bloom.
结果表明，陶瓷膜具有内部致密层和外部疏松层两层结构，膜层与铝基体为冶金结合。
The results show that the ceramic coating is composed of a two-layer structure with the surface loose zone and the inner compact zone.
由于钢锭内部不可避免地存在偏析、疏松、缩孔及微裂纹等冶金缺陷。
Owing to both physical and chemical properties of metal material, there are inevitably shrinkage cavities, porosity and segregation in ingots.
由于钢锭内部不可避免地存在偏析、疏松、缩孔及微裂纹等冶金缺陷。
Owing to both physical and chemical properties of metal material, there are inevitably shrinkage cavities, porosity and segregation in ingots.
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