Brackett series

布拉开系

Explanation (EN)

The series of hydrogen spectral lines from transitions ending at n=4, lying in the infrared.

Explanation (ZH)

电子跃迁终态为 n=4 所产生的氢谱线系,位于红外区。

About the IPA

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It helps linguists, language learners, and educators accurately describe pronunciation across languages.

Example: the word "hello" in British English is transcribed as /həˈləʊ/ in IPA.