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51. | cargo vent system |
| 货物通风系统 |
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52. | radiator vent pipe |
| 散热器通风管 |
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53. | vent (-escape) raise |
| 通风天井 |
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54. | air vent valve |
| 通气阀 |
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55. | vent float valve |
| 通气浮子活门 |
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56. | Bowl vent valve |
| 球形通风阀 |
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57. | vent valve piston |
| 通风阀活塞 |
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58. | vent gas condenser |
| 尾气冷凝器 |
|
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59. | emergency vent valve |
| 紧急放风阀 |
|
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60. | automatic pressure vent |
| 自动排气门 |
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