打磨：运用耐水砂纸蘸水打磨，这可有效避免铜版粉尘飞入肺中。
Sanding: use wet sandpaper with water, this avoids copper dust to fly straight to your lungs.
建议砂纸选用珠宝行业用的那种，最好是进口的，比如勇士牌水砂纸。
The proposed sandpaper with the kind of jewelry industry, it is best to import, such as brand word warrior card water sandpaper.
建议砂纸选用珠宝行业用的那种，最好是进口的，比如欧米茄勇士牌水砂纸。
The proposed sandpaper with the kind of jewelry industry, it is best to import, such as the warrior brand water sandpaper.
通过定量分析不同粒度水砂纸磨光后在钢试样表面造成的表面质量差异，找到适合不同硬度试验需要的表面质量的具体获取方法。
These methods are acquired via quantitative measurement of surface quality differences caused by water proof abrasive papers with various degree of roughness on the steel samples.
通过定量分析不同粒度水砂纸磨光后在钢试样表面造成的表面质量差异，找到适合不同硬度试验需要的表面质量的具体获取方法。
These methods are acquired via quantitative measurement of surface quality differences caused by water proof abrasive papers with various degree of roughness on the steel samples.
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