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helper | |||
attachment | |||
auxiliary mechanism | |||
complementary unit; doctor | |||
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helper | |||
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attachment | |||
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servomechanism |
辅助机构: 29 phrases in 12 subjects |
Automobiles | 2 |
Aviation | 6 |
Business | 1 |
Earth sciences | 2 |
Economy | 1 |
Electronics | 6 |
Environment | 2 |
Navigation | 2 |
Project management | 1 |
Space | 2 |
Technology | 3 |
Telecommunications | 1 |