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| |||
| safeguard | |||
| security protection unit | |||
| safeguarding device; safety device; safety protection installation | |||
| guarding device; safety guard | |||
| 安全防护装置: 5 phrases in 5 subjects |
| Automobiles | 1 |
| Electronics | 1 |
| Rail transport | 1 |
| Technology | 1 |
| Wind Energy | 1 |
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