|
|
| 11. | floor of coal seam |
| 煤层底板 |
|
|
| | |
| 12. | underlying strata |
| 底板岩石 |
|
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| | |
| 13. | subbase footing |
| 基础底板 |
|
|
| | |
| 14. | electronic watch circuit disc |
| 电子表底板 |
|
|
| | |
| 15. | plexiglass base plate |
| 有机玻璃底板 |
|
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| | |
| 16. | bottom ejector plate |
| 喷射底板 |
|
|
| | |
| 17. | pilot tunnel floor |
| 导坑底板 |
|
|
| | |
| 18. | backplane level |
| 底板级 |
|
|
| | |
| 19. | watch circuit disc |
| 表底板 |
|
|
| | |
| 20. | collecting tray |
| 底板格 |
|
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| | |