 |
| |||
| filter mask | |||
| respirator | |||
| slope drainage revetment | |||
| breathing mask; smoke mask | |||
|
masque filtrant : 8 短语, 4 学科 |
| 一般 | 1 |
| 农业 | 1 |
| 卫生保健 | 4 |
| 运输 | 2 |
|
| |||
| filter mask | |||
| respirator | |||
| slope drainage revetment | |||
| breathing mask; smoke mask | |||
|
masque filtrant : 8 短语, 4 学科 |
| 一般 | 1 |
| 农业 | 1 |
| 卫生保健 | 4 |
| 运输 | 2 |