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hexagon | |||
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hex (hexagonal) | |||
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hexagon flats like a bolt head but not on a bolt; designed to enable something to be slackened or tightened with a spanner |
Sechskant : 26 phrases in 7 subjects |
Chemistry | 2 |
Drilling | 1 |
Earth sciences | 1 |
General | 3 |
Industry | 2 |
Mechanic engineering | 10 |
Technology | 7 |