1. 原线圈的意思
1. 副线圈。交流电流过原线圈的,使副线圈产生电动势
Flow through the primary coil原线圈, an induced alternating e. m. f.
2. 通过原线圈在次级线圈中产生电流。
Current through primary coil induces current in secondary coil.
3. 它有二种方式:一种是在原线圈的外面加绕一个线圈;
The utility model has two methods: one method is that a coil is additionally winded outside the original coils;