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sergei sergeevich filatov
2 cilt bulundu.
Cilt sonuçları
Ventili͡a︡t͡s︡ii͡a︡ karʹerov
Sergeĭ Sergeevich Filatov · "Nedra"
205 sayfa · 1981
Mine ventilation / Safety measures / Strip mining
Borʹba s pylʹ͡iu i gazami na karʹerakh
K. V. Kochnev, Sergeĭ Sergeevich Filatov · Sredne-Uralʹskoe knizhnoe izd-vo
170 sayfa · 1970
Mine dusts / Mine gases