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| 1. | double row of hooks |
| 双线圈横列针钩 |
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| 2. | double row double-direction thrust bearing |
| 双列双向推力轴承 |
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| 3. | double-row bearing |
| 双排轴承 |
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| 4. | double row hydraulic type pusher |
| 双排液压式推钢机 |
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| 5. | double-row scaffold |
| 双行棚架 |
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| 6. | double row of dots |
| 双排点纸 |
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| 7. | double-row disk |
| 双排涡轮盘 |
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| 8. | double row radial engine |
| 双排星型发动机 |
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| 9. | double row roller chain |
| 双排滚子链 |
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| 10. | double-row self-aligning bearing |
| 双排自调轴承 |
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