Where does this definition of ئېلېمېنت دەۋرىي سىستېمىسى come from?
This entry for ئېلېمېنت دەۋرىي سىستېمىسى is sourced from Main Dictionary, 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.