SOFF X · AIHujjatingizni AI yaratsinSovg'ani olingMahsulot tavsifi
The study of the chemical composition and structure of coal, as well as methods for extracting products from coal such as gas and other chemical substances
#kimyoviy xossalari#toshko'mir#toshko'mirni kokslash
Muallif
Nazar RayaTasdiqlangan muallif
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