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1. | airport perimeter fencing |
| 机场周边围网 |
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2. | perimeter heating |
| 周边供热 |
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3. | tunnel perimeter |
| 隧道周边 |
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4. | minefield perimeter marker |
| 雷场周边标志 |
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5. | perimeter blasting |
| 周边爆破 |
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6. | perimeter grouting |
| 周边管浆 |
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7. | perimeter marking |
| 周边标志 |
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8. | airport perimeter route |
| 机场周边信道 |
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9. | perimeter of deck |
| 甲板周边 |
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10. | One person's "security perimeter" is another's "broken network". |
| 一个人的"周边安全",是另一种的"断网". |
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