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| 水平移运动 | |||
| 平行运动 | |||
| 水平移动; 四联杆机构运动 | |||
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parallel motion : 16 phrases in 5 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Bridge construction | 2 |
| Chemistry | 1 |
| Technology | 11 |
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