<https://el.zarowadk.ru/#website>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://el.zarowadk.ru/rzia/mtz-s-puskom-blokirovkoj-ot-rele-minimalnogo-napryazheniya.html/attachment/formula_i_srab_mtz2>