replacing brattice cloth at coal faces with air curtains and diffuser fans, a preliminary study /
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Главный автор: | Bielicki, Richard J. |
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Соавтор: | United States. Bureau of Mines |
Другие авторы: | Thimons, Edward D., Kissell, Fred N. |
Формат: | Неизвестно |
Язык: | английский |
Опубликовано: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1975.
|
Серии: | Report of investigations (Unites States. Bureau of Mines) ;
8052. |
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