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| 51. | probe-type liquid-level meter |
| 探针式液位计 |
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| 52. | chain-float liquid-level gauge |
| 链－浮子液位计 |
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| 53. | transparent type liquid level indicator |
| 透明式液面计 |
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| 54. | laser precision liquid level sensor |
| 激光精密液位计 |
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| 55. | pneumatic control of liquid level |
| 液面的气动控制 |
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| 56. | electrode type liquid level meter |
| 电极式液位计 |
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| 57. | high liquid level waste tank |
| 高放液体废物槽 |
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| 58. | liquid level coefficient of reactivity |
| 反应性水位系数 |
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| 59. | fibre optic liquid level alarm |
| 光纤液位报警器 |
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| 60. | liquid level gauge of medium pressure |
| 中压液面计 |
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