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| 光电阅读器; 光电读数器; 光电读出器 | |||
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| 光电读数头 | |||
| 光电穿孔带读出器 | |||
| 光电阅读器 | |||
| 光电读数器; 光电读出器 | |||
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photoelectrical reader : 16 phrases in 4 subjects |
| Electronics | 2 |
| Metallurgy | 3 |
| Space | 1 |
| Technology | 10 |
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