huilu
Huilu is a transliteration that can refer to several terms in Mandarin Chinese and is sometimes used as a proper name in Chinese-speaking contexts. The most common written form corresponding to the pronunciation huí lù is 回路, which means a loop or circuit and is widely used in electronics, electrical engineering, and systems theory to describe a closed conducting path or a feedback loop.
In circuit analysis and design, 回路 denotes the path through which electric current can travel and return
The syllables huí and lù can combine with different characters to form other words or place names,
In English-language technical writing, when encountering the term, it is usually treated as the Chinese word 回路