4140 pre-heat treated是什么意思
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4140pre-heattreated是什么意思4140pre-heattreated是什么意思4140pre-heattreated是什么意思预热处理的.
4140 pre-heat treated是什么意思
4140 pre-heat treated是什么意思
4140 pre-heat treated是什么意思
预热处理的.
4140 pre-heat treated是什么意思
heat
PRE是什么意思
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英语翻译0 .These elements are generated at room temperature,so their addition will have acooling effect on the pre-existing melt pool.There will be a heat redistribution period,which isusually very short as compared with the time elapsed between