Where does this definition of natural circulation come from?
This entry for natural circulation is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does natural circulation appear elsewhere on Lughet?
Yes — natural circulation appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.