The hole size depends on the fluidity of slag phase in pellet and its filling condition to the hole in pellet. The amount and shape of iron phase depend on the reduction degree of pellet.

球团孔隙的大小取决于脉石所形成的渣相的流动性和渣对孔隙的充填状态：铁相的数量及形态则取决于球团的还原程度。

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But when seemingly useless possessions and even rotten food pile up, blocking exits and filling beds, sofas, sinks and bathtubs, it's evidence of a psychiatric condition called compulsive hoarding.

WSJ: Compulsive Hoarding Affects up to 2% of the Population