2. By sanding the split leather surface to roughen it up.
是通过打磨分割层皮革的表面，使它变粗糙而得到的。
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3. You'd better roughen the surface before applying the paint.
你最好先把表面弄毛糙再涂颜料。
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4. Before painting the wood, roughen the surface with sandpaper.
油漆木器前， 先用砂低把表面磨毛糙。
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5. You will then need to roughen the surfaces to prepare them to hold the materials.
你便要他们准备表面粗糙的材料进行。
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6. Then, it removes dead surface skin that can dry, roughen and dull your complexion.
去除皮肤表层导致皮肤干燥、粗糙和晦暗的死皮细胞。
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7. If maximum recoat interval is exceeded, roughen the film surface to ensure the adhesion between layers.
如超过最大重涂间隔，须磨粗表面，以确保漆膜间的附着力。
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8. These ingredients can cause bleeding under the nails, discolouration and can roughen the smooth texture of the nails.
这些成分可引起指甲下出血，变色，甚至使原本质地光滑的指甲变得粗糙。
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9. A mini-sized sand-blasting gun of ejection-and absorption type, used to clean and roughen the metallic surfaces for thermal spraying.
一种小型的射吸式喷砂枪，可用作喷涂喷焊前的表面清洁毛化处理。
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10. Its synchronous construction process includes milling and planing the concrete bridge surface to roughen, cleaning and blasting with special apparatus;
施工方法，采用专用设备对混 凝土桥面板表面浮浆进行铣刨、拉毛或凿毛、清扫、吹净处理；
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11. The results show that the two-step method can effectively remove Co on the cemented carbide substrates and obviously roughen the surface of the cemented carbide substrate.
研究表明，两步混合处理法不仅可以有效的去除硬质合金基体表面的钴，而且，还可显著粗化硬质合金衬底。
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12. Inferior smooth, wooden furniture, such as stainless steel workpiece surface, the surface of the ground glass decorative pattern design, and roughen the processing on the surface of the fabric.
如不锈钢工件、木制家具表面亚光化，磨砂玻璃表面的花纹图案，以及布料表面的毛化加工等。
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13. Inferior smooth, wooden furniture, such as stainless steel workpiece surface, the surface of the ground glass decorative pattern design, and roughen the processing on the surface of the fabric.
