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| 71. | inverted ram press |
| 反压式压力机 |
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| 72. | ram clamping handle |
| 锤头夹持手柄 |
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| 73. | ram impact machine |
| 冲击打夯机;捣锤冲击机 |
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| 74. | hydraulic ram cylinder |
| 液压压头伸缩筒 |
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| 75. | A castrated ram. |
| 被阉割过的公羊 |
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| 76. | line addressable ram |
| 行访问随机存储器 |
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| 77. | triple ram preventer |
| 三闸板防喷器 |
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| 78. | A hydraulic ram. |
| 水压抽水机 |
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| 79. | external-bruning ram |
| 外燃冲压发动机 |
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| 80. | blind-shear ram |
| 全封剪断闸板 |
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