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31. | meteorological instrument |
| 气象仪 |
|
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32. | magneto therapy apparatus |
| 磁疗仪 |
|
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33. | ore selecting instrument |
| 选矿仪 |
|
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| |
34. | abrading instrument |
| 磨损仪 |
|
|
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35. | programmed controller |
| 程序控制仪 |
|
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36. | moisture instrument |
| 温度仪 |
|
|
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37. | photo interpreter |
| 相片判读仪 |
|
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| |
38. | multiple-beam interferometer |
| 多光束干涉仪 |
|
|
| |
39. | photo sensitometer |
| 感光仪 |
|
|
| |
40. | light-reflectance apparatus |
| 反光仪 |
|
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| |