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31. | electronic watch circuit disc |
| 电子表底板 |
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32. | plexiglass base plate |
| 有机玻璃底板 |
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33. | pilot tunnel floor |
| 导坑底板 |
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34. | moving end plate |
| 活络底板 |
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35. | watch circuit disc |
| 表底板 |
|
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36. | backplane level |
| 底板级 |
|
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37. | bottom ejector plate |
| 喷射底板 |
|
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38. | collecting tray |
| 底板格 |
|
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39. | floor of coal seam |
| 煤层底板 |
|
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40. | negative matrix |
| 底板|底片 |
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