... 中心孔钻床 centre drilling lathe 中心孔隙 central porosity 中心对称 central symmetry ;centrosymmetry ...
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central segregation and porosity 中心偏析与疏松
The results showed that central porosity and ingot shape segregate were the major causes of the cracking.
压圈原材料中心疏松及锭型偏析是导致裂纹形成的主要原因。
Hence, when the slab is subjected to the liquid core pre-rolling, it will be possible to obtain a refinement of the internal structure by reducing the central porosity as well as the segregation.
因此，当板坯经历液芯预轧制的时候，将可能会通过减少中心多孔性和分离来获得内部结构的精制。
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