Where does this definition of twinning plane come from?
This entry for twinning plane is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does twinning plane appear elsewhere on Lughet?
Yes — twinning plane 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.