FIBER post: Prepare the root canal with the Pre-Shaping and Finishing drills, according to manufacturer's instructions. METAL post: Sandblast the surface of the post.
纤维桩：依照厂商说明使用预成钻和完成钻进行根管预备。金属桩：对桩的表面喷砂。
During ausform finishing process of hardened gears, there is plastic displacement of metal on the tooth surface and the distortion of tooth profile.
在齿轮热滚挤加工中，轮齿上的金属在强制挤压力的作用下沿齿面产生塑性流动，使齿形发生变化。
Main societies introduced are the American Electroplaters and Surface FInishers Society, the Institute of Metal Finishing, the Electrochemistry Society.
其中介绍的主要学会有美国电镀和表面精饰学会、英国金属精饰学会、美国电化学学会。
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