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Metallurgy
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四人
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四孔浸人式水口
four-port submerged entry nozzle
四孔浸人式水口
four-port SEN
(
A three or four port SEN is used depending on mould width to achieve optimum flow patterns. 为取得最佳流动模式,采用三孔还是采用四孔浸人式水口取决于结晶器的宽度。
)
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