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1. | pipeline reserve |
| 管道预留地 |
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2. | pre-opened hole |
| 预留孔 |
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3. | n. reserved seat or accommodation etc. |
| 预订,预留 |
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-- 来源 -- 新要求大学泛听教程4 - Unit 8 Traveling Part II |
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4. | protect [railway] |
| 预留路线〔铁路〕 |
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5. | reservation of site |
| 预留地盘 |
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6. | altitude reservation |
| 飞行高度预留 |
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7. | an allowance for breakage |
| 预留损耗 |
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8. | public utility reserve |
| 公用设施预留区 |
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9. | allowance for corrosion loss |
| 预留锈蚀量 |
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10. | margin for contingencies |
| 发生意外预留量 |
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