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| 21. | measuring projector |
| 投影仪 |
|
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| | |
| 22. | oblique projector |
| 倾斜投影器 |
|
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| | |
| 23. | opaque projector |
| 不透明体投影器;投射式放映机;投影仪;反射幻灯机;反射式放映机 |
|
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| | |
| 24. | horizontal projector |
| 卧式投影仪 |
|
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| | |
| 25. | xenon projector |
| 氙放映机 |
|
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| | |
| 26. | schlieren projector |
| 纹影投影机 |
|
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| | |
| 27. | sonar projector |
| 声呐发射器 |
|
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| | |
| 28. | planetarium projector |
| 天象仪 |
|
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| | |
| 29. | spectrum projector |
| 光谱投影仪 |
|
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| | |
| 30. | marking projector |
| 光学号料投影器 |
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