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- Surface etching to expand micropore openings occurred at low activation temperature and in-depth etching was preferred at high activation temperature. 在低温活化段助活化剂主要促进了孔口的扩张,而中、高温活化段推动了径向活化过程。
- The morphologies and cleanness of Si (111) surface etched in several NH?4F?HCl solutions have been studied by Scanning Tunneling Microscopy (STM) and X?Ray Photoelectric Spectroscopy (XPS) . 利用扫描隧道显微技术(STM)和X 射线光电子能谱(XPS)技术;研究了Si(111)在几种不同比例的NH4F HCl溶液中被腐蚀后的表面形态及洁净度.
- Etch, plana curved surface Processing Printing. 蚀刻平面,曲面印刷加工。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- The surface of the liquid gradually crusted over. 液体表面渐渐地结了一层皮。
- A breeze ruffled the surface of the lake. 一阵微风吹皱了湖面。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- The calm water surface is very much like a mirror. 那平静的水面十分象一面镜子。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- He is honest only on the surface. 他只是表面诚实而已。
- To carve, cut, or etch into a block or surface used for printing. 雕版在用于印刷的材料或其表面雕刻、镌划
- A film of mucus and bacteria on a tooth surface. 齿菌斑牙齿表面一层粘液和细菌的膜
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Surface mail takes longer than airmail. 普通邮件比航空邮件慢。
- The surface of the lake is quite still. 湖面相当平静。
- It's2 yuan by surface mail and3.6 yuan by air. 寄平信2元,寄航空要3元6角。
- Wheels won't bite on a slippery surface. 车轮打滑。
- The surface must be thoroughly clean. 表面必须彻底弄清洁。
- The surface between the ribs of a ribbed vault. 梁腹,腹板某扇形拱的胁拱之间的平面
- To carve,cut,or etch into a block or surface used for printing. 雕版在用于印刷的材料或其表面雕刻、镌划。