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| 保护圈; 保护层 | |||
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| 保护层 (tatulatum protectivum) | |||
| 保护层; 保护层; 防护层 | |||
| 防腐层; 防护膜 | |||
| 保［防］护层 | |||
| 钢架保护层; 护膜; 保护膜 | |||
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protective layers : 17 phrases in 8 subjects |
| Bridge construction | 1 |
| Cosmetics and cosmetology | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Metallurgy | 5 |
| Plastics | 3 |
| Rail transport | 1 |
| Technology | 4 |
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