- pineapple drilling bit
- ступенчатое буровое долото лопастного типа
Большой англо-русский и русско-английский словарь. 2001.
pineapple drilling bit
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List of Historic Mechanical Engineering Landmarks — The following is a list of Historic Mechanical Engineering Landmarks as designated by the American Society of Mechanical Engineers since it began the program in 1971. The designation is granted to existing artifacts or systems representing a… … Wikipedia
