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| 61. | push-pull theory |
| 推拉理论 |
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| 62. | push pull amplifier |
| 推挽放大器推挽式放大器 |
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| 63. | push pull circuit |
| 推换电路 |
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| 64. | push-pull cascade |
| 推挽级联 |
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| 65. | push-pull centring |
| 推挽定心 |
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| 66. | push-pull shunting |
| 推送调车法 |
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| 67. | push-pull operation |
| 推拉运行 |
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| 68. | pull together; cooperate |
| 同心协力 |
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| 69. | push-pull photocell |
| 推挽式光电管 |
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| 70. | push-pull current |
| 推挽电流 |
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