英语词汇“porthole die”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	porthole die
释义	porthole die porthole die [′pȯrt‚hōl ‚dī] (metallurgy) An extrusion die having two or more sections in which metal is extruded separately in each section and welded before leaving the die to form intricate hollow shapes.
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