center porosity

基本解释

Center segregation and center porosity will seriously affect the internal slab quality for continuous casting bloom.
連鑄過程中出現的鑄坯中心偏析和中心疏松會嚴重影響鑄坯內部質量。
The center axis of the part has inclusion defects as well as porosity and thus is suitable only for parts where this can be machined away.
零件的中心軸附近存在缺陷和孔隙，因此僅適用於能將這些機加工去除的零件。
But several defects are usually found in the continuous casting of steel, such as center segregation, V segregation and central porosity, especially for high carbon steels.
但在高碳鋼連鑄中，往往容易産生中心偏析、V形偏析、中心疏松等問題。