Coal-face operations at longwall faces with mechanized and automated systems : consolidated report / transmitted by the Government of the Union of Soviet Socialist Republics.
1984
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Условное обозначение
[E/ECE/]COAL/GE.4/R.25
Заглавие
Coal-face operations at longwall faces with mechanized and automated systems : consolidated report / transmitted by the Government of the Union of Soviet Socialist Republics.
Авторы
Дата
Geneva : UN, 30 May 1984.
Описание
6 p.