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| protection system A series of procedures and devices designed to preserve people, property or the environment from injury or harm | |||
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aizsardzibas sistema : 13 phrases in 9 subjects |
| Commerce | 1 |
| Construction | 1 |
| General | 1 |
| Human rights activism | 1 |
| Microsoft | 1 |
| Research and development | 1 |
| Social science | 4 |
| Statistics | 1 |
| Transport | 2 |