|
|
| 21. | vent of eruption |
| 喷发道;喷发口;喷溢口 |
|
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| | |
| 22. | Vent. Cowl |
| 透气帽 |
|
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| | |
| 23. | vent agglomerate |
| 火山口集块岩 |
|
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| | |
| 24. | air vent vale |
| 通气阀 |
|
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| | |
| 25. | additional vent |
| 加设通风口 |
|
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| | |
| 26. | vent a cask |
| 开桶 |
|
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| | |
| 27. | continuous vent |
| 通天排气管 |
|
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| | |
| 28. | vent valve spring |
| 通风阀簧 |
|
|
| | |
| 29. | local exhaust ventilation |
| 局部排气通风;局部排气通风 |
|
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| | |
| 30. | grout vent pipe |
| 灌浆排气管 |
|
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| | |