e) Prior to pickling, all heavy deposits of oils, greases, soils or foreign matter other than millscale, rust or rustscale shall be removed by precleaning as cited in 5.1.
酸
前，除了铁鳞、铁锈之外，诸如油、油脂、土或杂质等所有的重沉淀物均应通
清来清除，如5.1中所述。
,清e) Prior to pickling, all heavy deposits of oils, greases, soils or foreign matter other than millscale, rust or rustscale shall be removed by precleaning as cited in 5.1.
酸前，除了铁鳞、铁锈之外，诸如油、油脂、土或杂质等所有的重沉淀物均应通清来清除，如5.1中所述。
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人工
，
表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
