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| 21. | backplane level |
| 底板级 |
|
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| | |
| 22. | subbase footing |
| 基础底板 |
|
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| | |
| 23. | plexiglass base plate |
| 有机玻璃底板 |
|
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| | |
| 24. | collecting tray |
| 底板格 |
|
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| | |
| 25. | pilot tunnel floor |
| 导坑底板 |
|
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| | |
| 26. | floor of coal seam |
| 煤层底板 |
|
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| | |
| 27. | watch circuit disc |
| 表底板 |
|
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| | |
| 28. | electronic watch circuit disc |
| 电子表底板 |
|
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| | |
| 29. | bottom ejector plate |
| 喷射底板 |
|
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| | |
| 30. | moving end plate |
| 活络底板 |
|
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| | |