Several methods for calculating the inductance of the air cored cylindrical coil are introduced. A coil is made for checking the methods as above.
本文对各种空心圆柱线圈电感的计算方法进行了比较，通过制作了一个空心圆柱线圈对各种计算方法进行了验证。
In this paper, main parameters, key technology, test requires etc. of this motor are introduced, It is successful to use self-made rectangular wire in voice-coil of motor instead of cylindrical one.
文中介绍所研制的音圈电动机的主要参数、关键工艺、测试要点等，电机音圈采用自制矩形导线代替圆铜线而获得成功。
The helically wound coil is expandable into sealing engagement with a cylindrical wall of the molding machine.
所述螺旋缠绕线圈可膨胀成与所述 模制机的一圆筒壁密封啮合。
The helically wound coil is expandable into sealing engagement with a cylindrical wall of the molding machine.
所述螺旋缠绕线圈可膨胀成与所述 模制机的一圆筒壁密封啮合。
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