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| 61. | ball-and-disc integrator |
| 摩擦积分器 |
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| 62. | scraping mechanis |
| 摩擦机制 |
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| 63. | thread friction |
| 纱线摩擦 |
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| 64. | antitrptic wind |
| 摩擦风 |
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| 65. | sticking friction |
| 粘着摩擦 |
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| 66. | rubbing surface |
| 摩擦面 |
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| 67. | hydraulic friction |
| 水力摩擦 |
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| 68. | rope friction hoist |
| 摩擦提升机 |
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| 69. | rubbing manipulation |
| 摩擦法 |
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| 70. | starting friction |
| 起动摩擦 |
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