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| 51. | vent float valve |
| 通气浮子活门 |
|
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| 52. | specific vent stack |
| 专用通气立管 |
|
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| | |
| 53. | aortic vent needle |
| 主动脉孔针 |
|
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| | |
| 54. | emergency vent valve |
| 紧急放风阀 |
|
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| | |
| 55. | smoke vent system |
| 烟管式火灾报警系统 |
|
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| | |
| 56. | vent (-escape) raise |
| 通风天井 |
|
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| | |
| 57. | Rollover vent valve |
| 摇晃止回阀 |
|
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| | |
| 58. | vent valve piston |
| 通风阀活塞 |
|
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| | |
| 59. | radiator vent pipe |
| 散热器通风管 |
|
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| | |
| 60. | Bowl vent valve |
| 球形通风阀 |
|
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