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box bell | |||
female coupling tap | |||
bell socket; die collar; generating cone | |||
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female fishing tap | |||
bell screw; screw bell |
母锥 : 56 phrases in 10 subjects |
Architecture | 1 |
Automobiles | 6 |
Computer numerical control | 1 |
Construction | 3 |
Drilling | 10 |
Hydroelectric power stations | 1 |
Mechanic engineering | 2 |
Nautical | 1 |
Oil / petroleum | 3 |
Technology | 28 |