本文借助双层位势理论来讨论磁源体于曲界面上的场的上延问题。
This paper discusses the upward continuation of magnetic body on curved surface of magnetic field with the help of double potential theory.
欧米伽曲的存在延 长了弓丝的长度，使得弓丝产生的矫治力更柔和，副作用更少。
The omega curve prolongs the length of the arch thread, which enables the arch thread to generate a softer orthodontic force and fewer side effects.
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