Where does this definition of isobutane to normal butane ratio come from?
This entry for isobutane to normal butane ratio is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
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.
