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| 转换〔开闭〕机构 | |||
| 【焦】换向机构 | |||
| 转换机构; 开关机构; 开闭机构; 切换机构 | |||
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switching mechanism : 10 phrases in 6 subjects |
| Communications | 1 |
| Electronics | 1 |
| Rail transport | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 5 |
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