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| 球形支座; 球形轴承 | |||
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| 球头; 球面支承球形支座; 球形支座 | |||
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| 下球头 | |||
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| 支蘸 | |||
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шаровой опора : 14 phrases in 2 subjects |
| General | 10 |
| Technology | 4 |
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