用喷砂或其他电动工具除去铁锈、氧化皮等。
Remove rust, mill-scale and other loose material by abrasive blasting or power tool cleaning.
结果随着喷砂时间及喷砂压强的增加，以及喷砂颗粒大小的减小，氧化锆表面丧失量增加（P均＜0.05）。
Results The volume loss and height loss were increased with higher sandblasting pressure and longer sandblasting time, but they decreased with larger powder size (all P<0.05).
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