英德
有道
百度
谷歌
图片
维基
百科
灰斑
greyness
- 灰斑对橄榄褐土场。
Grey patches on an olive drab field. - 对焊缝缺陷脆性断口、灰斑、夹杂物提出了见解。
Some opinions about brittle fracture, gray spot and impurities in the weld are proposed. - 灰斑已成为无缝线路钢轨结构接触焊接头最突出的缺陷。
Grey spot has become the most conspicuous defect in resistance welding joint of the structure of continuous welded rail track.
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