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ball-and-nut; recirculating ball | |||
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recirculating ball |
循环球: 62 phrases in 14 subjects |
Agriculture | 1 |
Automobiles | 27 |
Desert science | 4 |
Earth sciences | 2 |
Ecology | 1 |
Environment | 1 |
Forestry | 2 |
General | 1 |
Genetics | 1 |
Metallurgy | 5 |
Oil / petroleum | 3 |
Technology | 12 |
United Nations | 1 |
Water polo | 1 |