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| 〔支〕光学工装; 光学工装 (光学仪器，安装工装或光学附件等,用于其他工装的对准、安装、检验或日常检查) | |||
| 光学工具【仪器】 | |||
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optical tool : 13 phrases in 3 subjects |
| Aviation | 2 |
| Geophysics | 1 |
| Technology | 10 |
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