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| 11. | nickel-plated double line iron screw hood |
| 镀镍双线螺旋帽 |
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| 12. | double-line spectroscopic binary |
| 双谱分光双星 |
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| 13. | double line of rails |
| 复线铁路 |
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| 14. | DIP (Double In-line Package) |
| 双列直插式组装 |
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| 15. | double coast line |
| 双海岸线 |
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| 16. | The bypass line double check valve shall have a single access cover, two independently operating modular |
| 旁路管线双止回阀应该具有一个检修盖，两个独立工作的运行模块化提升式止回阀，以及顶部安装测试旋塞。 |
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| 17. | double circuit line |
| 双回路线路 |
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| 18. | nickel-plated double line iron screw hook |
| 镀镍双线螺旋钩 |
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| 19. | double dots line |
| 双点划线 |
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| 20. | cross a double white line |
| 横越路面双白线 |
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