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以上来源于: WordNet
N one of a series of small wavy ridges of sand formed by waves on a beach, by a current in a sandy riverbed, or by wind on land: sometimes found fossilized on bedding planes of sedimentary rock 波痕
The influence factors and zinc flow ripple mark defect in hot galvanizing production line are introduced.
介绍了热镀锌生产线锌流波痕缺陷及其影响因素。
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