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Metallurgy
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Chinese
primary
witness
mark
【连】 初始连系痕
(【技】在水平连铸的一个间歇拉坯周期中,分离环上凝固的坯壳与下一拉程新注人熔体连接处形成的拉程冷隔即为初始连系痕。)
secondary
witness
mark
二次连系痕
(【技】在水平连铸的一个拉坯周期内,起始于已凝固坯壳的上游凝固前沿和起始于分离环的下游凝固前沿汇合处形成的印痕。)
witness
mark
连系痕
(水平连铸的)
witness
mark
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