 |
| |||
| natural-technological disaster (Rus: most hits MichaelBurov); natech disaster (Rus: most hits MichaelBurov); na-tech disaster (Rus: most hits MichaelBurov); natural-technological hazard (Rus: most hits MichaelBurov); natech hazard (Rus: most hits MichaelBurov); na-tech hazard (Rus: most hits MichaelBurov) | |||
|
природно-техногенная катастрофа : 5 短语, 1 学科 |
| 安全系统 | 5 |