- current balancing autotransform-err
- 衡: the graduated arm of a steel ...
- 自: self; oneself; one's own
- 耦: plough side by side
- 变压器: transformer; voltage transfo ...
- 自耦变压器: auto coupling transformer; auto transformer; auto-jigger; auto-tra former; autoconverter; autotranstormer; compensator; divisor; transtat; variac; variak; varitran
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