over-heated zone

常见例句

双语例句

• The results show that:under the no preheating condition, the microstructure of weld metal is columnar austenitic, and brittle martensite exists in the fusion zone and over-heated zone unavoidably.
  研究结果表明：在不预热条件下，用KD286焊补钢轨，焊缝组织为柱状奥氏体组织，熔合区和过热区不可避免地产生脆硬的马氏体组织。
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