forewarm

常见例句

• The paper discusses the WB36 steel's wedding craft feature,forewarm,wedding,heat treatment etc,and prosecutes all kinds performance test to wedding joint,then gains favorable results.
  文章对WB36钢的焊接工艺特点、预热、焊接、热处理等工艺规范进行了探讨,并对焊接接头进行了各项性能试验,取得了良好的效果。
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