n. flushing
vt. bleed
开始渗透行动 Commencing infiltration
一个暗红色的污渍正在他的衬衫上渗开。
A dark red stain was spreading across his shirt.
《柯林斯英汉双解大词典》
使变得模糊，如色彩或染料；渗开。
To become blurred, as a color or dye; run.
youdao
非常适合于引锭头与结晶器铜板之间无规则缝隙的密封，防止开浇时渗、漏钢的现象的出现。
It is ideal for sealing all the random gaps between dummy bar head and mould copper plate, to prevent the hot metal infiltration and break out while casting.
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