roughen

verb

1. 变粗糙；使粗糙
   to become rough; to make sth rough
   1. His voice roughened with every word.
      他说话的声音越来越嘶哑。
   2. Cold weather roughens your skin.
      天气寒冷，皮肤变得粗糙。

1. VERB （使）变得粗糙;（使）变得不平滑
   If something has been roughened, its surface has become less smooth.
   1. ...complexions that have been roughened by long periods in the hot sun...
      因长期曝晒而变得粗糙的皮肤
   2. She lifted her big, roughened hands.
      她举起了那双粗糙的大手。

1. She lifted her big, roughened hands.
   她举起了那双粗糙的大手。
2. Roughen the surface before applying the paint.
   先把表面弄毛糙再涂颜料。
3. Before painting the wood, roughen the surface with sandpaper.
   油漆木器前，先用砂低把表面磨毛糙。
4. A mini-sized sand-blasting gun of ejection-and absorption type, used to clean and roughen the metallic surfaces for thermal spraying. bedded temperature detector
   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。嵌入式测温计；嵌入式温度计；埋入式温度计；埋置式温度探测器
5. The result of study reveal that the information of control system can be conserved by roughen the controlling quantity, the conversion from precision quantity set to smaller amount control rules can be achieved, the variable precision control can be realized by the means of equal relative error.
   研究结果表明，对精确控制量的粗糙化，可以有效地保留控制系统的信息量，可以实现精确量集合向较少数量控制规则的转换，可以实现相对误差均衡的变精度控制策略。
6. The heat transfer and flow resistance performance of heat exchangers with smooth or roughen tube bundles supported by rod or plate supports have been investigated through experiments, and the curves of heat transfer coefficient and pressure drop in shell-side of these heat exchangers are obtained.
   对不同内部支承结构与管束组合的套管式管束换热器壳侧进行了传热与流阻性能实验研究，得到了3种换热器壳侧对流传热系数及压降随流量变化的关系曲线。
7. The walls were roughen and thicken or thin.
   胆囊壁毛糙，增厚或不厚；
8. The metallographic analysis showed that when roll textured by fiber laser, the surface organization of roughen point was fine-grain martensite and a small amount of austenite.
   毛化点金相分析表明：轧辊经光纤激光毛化后，表层组织为细小马氏体和少量残余奥氏体。
9. The results showed that at a certain pressure of side-blown gas, roughen point convex increased with laser power, and the surface roughness increased accordingly.
   结果表明：一定侧吹气体压力下，激光功率增大，毛化点凸台增大，表面粗糙度增大。
10. Fiber laser is a kind of technology with roughen point topography and distribution controllable, roughness and density adjustable on a large scale, good repeatability and excellent roughen surface performance.
    光纤激光毛化是一种毛化点形貌和分布可控、粗糙度及密度可大范围调整、重复性好、毛化表面性能优良的技术。

verb

1. make rough or rougher
   1. roughen the surfaces so they will stick to each other