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