- holes per face
- столько-то шпуров на забой
Англо-русский терминологический словарь по геологопоисковому бурению. - Л.: Гостоптехиздат, Ленинградское отделение . Э.Э. Гитциграт, А.А. Пинкевич, Л.В. Виноградова . 1963.
Англо-русский терминологический словарь по геологопоисковому бурению. - Л.: Гостоптехиздат, Ленинградское отделение . Э.Э. Гитциграт, А.А. Пинкевич, Л.В. Виноградова . 1963.
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