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| 41. | float type pressure differentiator |
| 浮子式差压机 |
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| 42. | float-type specific gravity meter |
| 浮子式比重计 |
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| 43. | displacement type float |
| 浮子式液面指示器 |
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| 44. | float-operated relief valve |
| 浮球控制安全阀 |
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| 45. | float steam trap |
| 浮式隔汽具 |
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| 46. | cone-and-float meter |
| 锥体浮子式流量计 |
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| 47. | float-type limnimeter |
| 浮式自动湖泊水位计 |
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| 48. | float type steam trap |
| 浮子式蒸汽疏水器 |
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| 49. | differential float collar |
| 压差式浮箍 |
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| 50. | equipment of life float |
| 救生浮属具 |
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