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71. | level transmitter |
| 能级传送器 |
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72. | level distribution |
| 能级分布 |
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73. | level ellipsoid |
| 水准椭球 |
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74. | precedence level |
| 优先等级 |
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75. | level hierarchy |
| 同水平等级 |
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76. | level splitting |
| 能级分裂 |
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77. | level measurement |
| 标高测量 |
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78. | programme level |
| 节目电平 |
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79. | Level Modulation |
| 电平调节 |
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80. | abstraction level |
| 抽水位 |
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