Большой англо-русский и русско-английский словарь
drilling [drill penetration] rate, boring speed, cutting speed, drilling speed
Англо-русский словарь технических терминов
drilling [drill penetration\] rate, boring speed, cutting speed, drilling speed
Русско-английский политехнический словарь
drilling [drill penetration] rate, boring speed, cutting speed, drilling speed
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drilling rate
Dictionnaire technique russo-italien
velocità di perforazione [di trivellazione]