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| protection systems | |||
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| safety system | |||
| protective system | |||
| conveyor belts guard | |||
| protection system A series of procedures and devices designed to preserve people, property or the environment from injury or harm | |||
| type of protection | |||
| protection system | |||
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Schutzsysteme : 7 短语, 5 学科 |
| 一般 | 2 |
| 信息技术 | 1 |
| 政治 | 2 |
| 法律 | 1 |
| 电子产品 | 1 |