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71. | pull-type scraper |
| 牵引式刮管器 |
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72. | push-pull rectifier |
| 推挽式整流器 |
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73. | push-pull tripler |
| 推挽式三倍频器 |
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74. | single pull hatchcover |
| 滚翻式舱盖 |
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75. | pull off insulator |
| 拉线绝缘子 |
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76. | pull-off connection |
| 脱落连接 |
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77. | pull-in frequency |
| 引入频率 |
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78. | hollow door pull |
| 空心门拉手 |
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79. | pull-in winding |
| 吸引线圈 |
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80. | feed pull maximum |
| 最大提升力 |
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