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| 天线辐射图测绘 | |||
| 天线辐射图形测绘 | |||
| 服装样板尺寸; 纸样尺寸 | |||
| pattern measurement: 6 phrases in 4 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Electronics | 1 |
| Technology | 2 |
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