“bell transformer”的概念、定义、翻译、参考文献-科学参考

单词	bell transformer
释义	bell transformer [`bel tranz´fȯr·mǝr] ^ELECTRICITY An iron-core, step-down transformer with a voltage step-down ratio of approximately 6 to 1 or 12 to 1, used in low-current power supplies and frequently in circuits for doorbells, alarm bells, and buzzers.
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