该机可在矩形封闭的电压互感器铁芯上直接绕制一次线圈，为我所之首创。
The machine directly winds the primary coil on the rectangular enclosed voltage transformer core, which is originated by our institute.
该机可在矩形封闭的电压互感器铁芯上直接绕制一次线圈，为我所之首创。
The machine directly winds the primary coil on the rectangular enclosed voltage transformer core, which is originated by our institute.
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